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Celebrity Stans - Flattered at the discovery that Rihanna was a fan of his music, Royce da' 5'9" included an amorous shout out to the pop singer in his 2011 BET Hip Hop Awards cypher performance. "Rihanna told me she liked one of my songs, so I just felt like, you tell me that again, we go together," Royce later explained. He's not alone… Stars Stan for one another on the regular. Here's a few notable stars talking about coming across some of their celebrity fans.(Photos from left:  John Ricard / BET,  Ian Gavan/Getty Images)

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DJ Khaled - "I remember when I performed at the BET Awards, 'All I Do Is Win' and I seen will.i.am and Black Eyed Peas singing the whole song. I remember Rihanna, one time I was at a concert in Miami. I think it was a Lil Wayne show. They brought me out to do “I’m So Hood” and I seen her singing. That’s when I realized that we’re making amazing music." (Photos from left: Barcroft/Fame Pictures, Amanda Edwards/PictureGroup)

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Nelly - "Right now, it’s probably Taylor Swift. That’s probably been a great surprise for me. It feels real good that a lot of people from various ranges of entertainment appreciate you. I think that’s what you really want." (Photos from left: Kristian Dowling/PictureGroup, Frederick Breedon IV/Getty Images)

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Yung Joc - "It’s like two people: MC Hammer and Kid from Kid ‘N Play. Kid, I swear on everything I love, Kid busts out and sings four of my records that I’ve never even released that was on the very, very first music I ever put out before “It’s Going Down” really even popped. So that threw me. MC Hammer pulls me on stage, stops his song and we started performing to my song. That was one of those surprising moments." (Photos from left:  David Livingston/Getty Images, Gary Miller/Getty Images)

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Ashanti - "I remember I was in the bathroom, I think at the Grammys or the American Music Awards, and Kelly Osbourne came into the bathroom and said, ‘Ashanti, I f*ckin’ love your music.’ And I was like, ‘Oh my gosh, thank you so much, so nice to meet you.’ So that really threw me for a loop." (Photos from left: Evan Agostini/Getty Images, Jason Kempin/Getty Images)

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Trey Songz - "I remember Maxwell saying he was a big fan of me a while back and that was very surprising. But to know that…Stevie Wonder being a fan of my music and actually singing “I Invented Sex” at the BET Honors. That was amazing. Every day it’s somebody new, man. Like I said, I’m just blessed at this point in my life… so many beautiful things going on." (Photos from left: Brad Barket/PictureGroup, Scott Gries/MTV/PictureGroup)

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Drake - "Richard Branson honoring my music was pretty crazy with the Virgin thing. Sir Richard Branson. Roger Ebert, yea, he liked the ‘two thumbs up, Ebert and Roper.’ He liked that. I mean, anybody like that is crazy to me. I mean, Michael Jordan knows my music. They tell me Obama’s heard my music before. That’s crazy. It’s special." (Photos from left: Cindy Ord/Getty Images, Jag Gundu/Getty Images)

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Rick Ross - "You know, Bruce, he is a fan of mine and I’m a fan of Bruce Willis. We done kicked it on several occasions. Shout out to P. Diddy, remember me? We done partied big and it’s all good. Ain’t nothing wrong with that, a little Fruit Loops in the air. Die hard, baby! Believe that!" (Photos left to right: Albert L. Ortega/PictureGroup, WCEPIX/EP/PICTUREGROUP)

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Snoop Dogg - "My most shocking Snoop Dogg fan would be Bill Gates. He was following me around at the Live 8 for a picture. I was like, ‘This fool got all this money and he’s chasing me around for a picture? Let me take this picture and go in his pocket at the same time.’" (Photos left to right: Kevin Winter/Getty Images, Sean Gallup/Getty Images)

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Bun B - "Chi McBride. I haven’t really interacted with too many people outside of the hip-hop community. Unfortunately I’m not famous to where I’ve had a lot of crazy famous people come up to me and be like, ‘Yo, I love your music, I love what you do.’ Travis Barker. Big fan, like, knew the catalog, knew lyrics. Travis Barker surprised me. That’s why we do a lot of music ‘cause I so happened to be a big fan of his music. “Stay Together for the Kids” from Blink 182 is a powerful record." (Photos left to right: Kevin Winter/Getty Images, Isaac Brekken/Getty Images)

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Fat Joe - "This limo driver one time, he said, ‘Yo, you wouldn’t believe the weirdest story.’ And this is back in the days, hardcore, underground Fat Joe. ‘I was driving Billy Joel around all day and he kept bumping this Fat Joe album, all day.’ I can’t confirm it. It’s just a rumor from the driver." (Photos left to right: Scott Gries/Getty Images, Michael Loccisano/Getty Images)

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50 Cent - "To this day my most shocking celebrity fan would have probably been Ice-T. He actually enjoyed my music. He told me that he was one of the first gangsta rappers and I was the end of it ‘cause he didn’t believe any of the other guys." (Photos left to right: Scott Gries/Getty Images, REUTERS/Lucas Jackson /Landov)

Photo By Photos left to right: Scott Gries/Getty Images

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Rakim - "I think the most surprising joint…I didn’t bump into him, but Karl Lagerfeld. He’s a fashion clothes designer. You know, when you look at him, you think that he don’t even pay attention to rap, but he said Paid in Full was his favorite album and I’m his favorite rapper. That’s what makes you feel extra good, when you reach people outside of your normal circumference or your normal cypher." (Photos left to right:  Jamie McCarthy/Getty Images, Tim Mosenfelder/Getty Images)

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Talib Kweli - "I used to be surprised, but I’m not surprised no more. But when I used to be surprised, it was Rakim." (Photos left to right: Theo Wargo/Getty Images, Terrence Jennings/PictureGroup)