01of 10MATT & JOEMichael Buckner/GettyThe Carnegie Mellon School of Drama classmates reunited when Manganiello made a cameo on Bomer’s showWhite Collarand again when the duo showed off their incredibly buff bodsas male strippersinMagic Mike. “Matt is one of the funniest people that I know, so the two of us together, we were just laughing our asses off the whole time,” Manganiellotold AfterEltonabout filming with his college friend.
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MATT & JOE
Michael Buckner/Getty

The Carnegie Mellon School of Drama classmates reunited when Manganiello made a cameo on Bomer’s showWhite Collarand again when the duo showed off their incredibly buff bodsas male strippersinMagic Mike. “Matt is one of the funniest people that I know, so the two of us together, we were just laughing our asses off the whole time,” Manganiellotold AfterEltonabout filming with his college friend.
02of 10MATT & BENMichael Kovac/WireImage(2); Inset: Jim SmealPerhaps the most famous of all Hollywood bromances,AffleckandDamon’sfriendship started when theguys were young. Fast-forward throughGood Will Hunting,Sexiest Man Alivetitles and moremajor momentsand it’s clear they’re in it for the long haul. “You’re friends when you are young, you have a certain life,” Affleck told PEOPLE of their evolving relationship. “Then in your 20s you have a different life. In your 30s you get married and have families.” And for these two, always together.
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MATT & BEN
Michael Kovac/WireImage(2); Inset: Jim Smeal

Perhaps the most famous of all Hollywood bromances,AffleckandDamon’sfriendship started when theguys were young. Fast-forward throughGood Will Hunting,Sexiest Man Alivetitles and moremajor momentsand it’s clear they’re in it for the long haul. “You’re friends when you are young, you have a certain life,” Affleck told PEOPLE of their evolving relationship. “Then in your 20s you have a different life. In your 30s you get married and have families.” And for these two, always together.
03of 10JUSTIN & JIMMYLloyd Bishop/NBCIt’s afriendshipfounded in laughter. The two always cracked up in Saturday Night Live skits, and proved that famous friends come in handy whenTimberlakewasFallon’s first guestonLate Night. They’ve rapped together,honored each otherat awards shows and whenTimberlake wedJessica Biel, Fallon was among the guests.
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JUSTIN & JIMMY
Lloyd Bishop/NBC

It’s afriendshipfounded in laughter. The two always cracked up in Saturday Night Live skits, and proved that famous friends come in handy whenTimberlakewasFallon’s first guestonLate Night. They’ve rapped together,honored each otherat awards shows and whenTimberlake wedJessica Biel, Fallon was among the guests.
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BENEDICT & TOM
Dave M. Benett/Getty

05of 10BLAKE & ADAMKevin Winter/GettyThe potty-mouthedVoicementors couldn’t hide their blossoming bromance when the show began — but just don’t use that “B” word aroundLevine.“We’re just friends. It’s called a friendship!” he told PEOPLE in 2012. Known for their pranks (Sheltononce Tweeted Levine’s phone number, and Levine sent Shelton a gigantic copy of his Sexiest Man Alive cover), the two like to keep each other laughing, even since Levine’s departure fromThe Voice.
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BLAKE & ADAM
Kevin Winter/Getty

The potty-mouthedVoicementors couldn’t hide their blossoming bromance when the show began — but just don’t use that “B” word aroundLevine.“We’re just friends. It’s called a friendship!” he told PEOPLE in 2012. Known for their pranks (Sheltononce Tweeted Levine’s phone number, and Levine sent Shelton a gigantic copy of his Sexiest Man Alive cover), the two like to keep each other laughing, even since Levine’s departure fromThe Voice.
06of 10JOHN & GEORGEGettyTheir 2008 film Leatherheads might not have been a runaway hit, but it did spark a friendship betweenKrasinskiandClooney. Years later, Krasinski marriedEmily Bluntat Clooney’s Italian villa, and the guys returned to Italy forClooney’s star-studded nuptials.
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JOHN & GEORGE
Getty

Their 2008 film Leatherheads might not have been a runaway hit, but it did spark a friendship betweenKrasinskiandClooney. Years later, Krasinski marriedEmily Bluntat Clooney’s Italian villa, and the guys returned to Italy forClooney’s star-studded nuptials.
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MICHAEL & MILES
Alberto E. Rodriguez/Getty

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LEO & TOBEY
Noel Vasquez/Getty

09of 10DEREK & MARKJerod Harris/GettyTheDancing with the Starspros' friendship is actually more familial. Hough and sisterJuliannelived with classmate Ballas and his familyin 1998 when they moved to the U.K. to attend London’s Italia Conti Academy of Theatre Arts. “With Derek, blood couldn’t make us any closer,“said Ballas, who alsoplayed in a bandwith Hough before starting hissolo career. The guys' dreams came true when they both landed onDWTSand theirbrotherly bondcontinues to grow.
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DEREK & MARK
Jerod Harris/Getty

TheDancing with the Starspros' friendship is actually more familial. Hough and sisterJuliannelived with classmate Ballas and his familyin 1998 when they moved to the U.K. to attend London’s Italia Conti Academy of Theatre Arts. “With Derek, blood couldn’t make us any closer,“said Ballas, who alsoplayed in a bandwith Hough before starting hissolo career. The guys' dreams came true when they both landed onDWTSand theirbrotherly bondcontinues to grow.
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JOHN & ANDY

Cohen admitted inEntertainment Weeklythat while their friendship may seem “unlikely,” their bond is strong.
source: people.com