Best advice celebs got from other stars -

Many times, the path to fame and glory is an arduous one. While most celebrities may be living the high life now, for many it was a sinuous path to get there, and they learned a lot along the way.

Armed with buckets of knowledge and experience, many famous people decided to share their wisdom with their peers. From personal to professional advice, these stars passed on many lessons to other celebrities.  

Click through the gallery and discover some of the best advice celebrities gave each other.

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Justin Bieber to Niall Horan - Justin Bieber gave former One Direction member Niall Horan advice on his music career. Bieber told Horan that you never know when you finish an album. So, remember, your best work may be yet to come!

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Rihanna to Cara Delevingne - Cara Delevingne was on vacation in Greece and felt lonely, so she called Riri, who gave her this piece of advice: "It’s easy to drown yourself in work. That’s a form of escapism. So, if you’re alone and you want to cry, cry."

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Usher to Justin Bieber - The R&B star helped launch Bieber's career. He wisely said, "Enjoy it while you got it. Make the best of it and be fruitful. You have to be a sponge, wherever you are, soak up everything and reproduce something incredible."

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Taylor Swift to Selena Gomez - Selena Gomez shared valuable advice she got from Taylor Swift. Swift once told Gomez that she should constantly surround herself with people who are going to make her better, challenge her, and motivate her.

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Robert Downey Jr. to Tom Holland - Tom Holland was given a good tip by Robert Downey Jr. while doing a screen test. He told him to relax, to let his body take over, and if it's meant to be, it'll happen.

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Sofia Vergara to Ariel Winter - Sofia Vergara told 'Modern Family' co-star Ariel Winter to wear whatever she wants, and feel good about herself.

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Bradley Cooper to Lady Gaga - Lady Gaga shared in an interview a lesson she learned from Bradley Cooper: "It’s okay to be relentlessly sure of your vision, and to go after it with every fiber of your being."

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Tom Hardy to Jack Lowden - Jack Lowden received some simple, yet deep advice from 'Dunkirk' co-star Tom Hardy, who simply told him: "Make it just for you."

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Jennifer Lawrence to Brie Larson - After winning an Oscar, Brie Larson confessed to Lawrence that she didn't feel better about herself or that she was a good actress. Jennifer Lawrence told her: "That’s totally normal. I’ve had the same thing. Don’t think of it like that. Think of it as, like, you got your Ph.D. You’re certified; that’s it. It doesn’t change anything. You can still f— up. Every judge is still human."

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Jennifer Coolidge to Melissa McCarthy - Actress Melissa Mccarthy received some work advice from the veteran actress, including: "Dig in deep and don’t sell yourself short," and "don’t confuse someone working for you with them doing you a favor."

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Carrie Fisher to Daisy Ridley - The late actress gave Daisy Ridley some solid advice on both a personal and professional level. She told the young actress, "You don’t want to give people the ability to say ‘I had sex with Princess Leia.'"

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Sylvester Stallone to Chrissy Metz - Sylvester Stallone gave 'This Is Us' star Chrissy Metz some good advice. He told her that succeeding was all about resilience and having a thick skin.

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Jennifer Lawrence to Shailene Woodley - The actress also gave advice to Shailene Woodley while she was considering the 'Divergent' franchise. Lawrence told Woodley that she would not regret it for a second, and that "there are some hard things, but there are so many beautiful things that will come from an opportunity like this.”

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Emma Stone to Brie Larson - Stone mentored Brie Larson through a Golden Globes ceremony. Apparently, they were texting each other all the time.

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Selena Gomez to Dove Cameron - Actress Dove Cameron received some advice from Selena Gomez. Gomez told Cameron that the most important thing is that she should never deviate from her authenticity.

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Taylor Swift to Hailee Steinfeld - Taylor Swift gave Hailee Steinfeld some helpful advice. She told her "You’re going to have to make a lot of decisions — make sure it’s you that’s making them."

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Cate Blanchett to Natalie Portman - When Natalie Portman asked how Cate Blanchet managed to be such a great mom, she replied: "You just do. Stressing about it doesn’t help."

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Sinéad O'Connor to Miley Cyrus - Sinéad O'Connor wrote a letter to Miley Cyrus warning her of the dangers of the music business. She told the pop star that "The music business doesn’t give a sh*t about you, or any of us."

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Courtney Love to Britney Spears - Courtney Love pointed out that Britney Spears needed help and that if she didn't get some, something very bad was going to happen.

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Chloë Grace Moretz to Kim Kardashian - Chloë Moretz took to Twitter to give Kim Kardashian some advice after she posted a naked selfie. She wrote: "I truly hope you realize how important setting goals are for young women, teaching them we have so much more to offer than... just our bodies."

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Courtney Love to Amanda Bynes - Love offered to help Amanda Bynes when she had a breakdown in 2013. She even told her to "pull it together dude."

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Shonda Rhimes to Ellen Pompeo - Shonda Rhimes gave Pompeo some helpful career advice: "Decide what you think you're worth and then ask for what you think you're worth. Nobody's going to just give it to you."

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Oprah Winfrey to Dr. Phil - Without Oprah, there would be no Dr. Phil. He said "I had no desire to be on television before and she made me see the value of it and she made me understand the power of it."

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Jane Fonda to Meryl Streep - Fonda mentored Streep throughout her career. Meryl Streep took a moment to thank her for her lessons and kindness in a speech at the AFI Lifetime Achievement Award ceremony in 2014.

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Emily Blunt to John Krasinski - John Krasinski has his wife to thank for the encouragement to direct 'A Quiet Place,' where he initially was just going to star. He says she's the "secret ingredient" to his career.

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Edward Herrman to Alexis Bledel -

The veteran actor took young Bledel under his wing while filming 'Gilmore Girls,' recalled Kelly Bishop, who played the matriarch Emily Gilmore.

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Joan Rivers to Jennifer Lawrence - Not all advice is necessarily solicited. The late comedian commented that Jennifer Lawrence should practice what she preaches, when it comes to the actress's opposition of having photos retouched.

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Ellen Pompeo to Daniel Craig - The 'Grey's Anatomy' star said Craig needed a reality check, after he announced that he'd rather slit his wrists than play James Bond again.

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Frances Bean Cobain to Lana Del Rey - Kurt Cobain's daughter advised the singer to stop glamorizing musicians who die young.

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See also - Check out some other inspirational life advice from your favorite celebrities!

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