Story highlights A fan got a little too personal with Katy Perry at a Rio concert

Perry took the kissing and touching in good humor

(CNN) Katy Perry was kissed by a girl -- and got more than she bargained for.

At the Rock in Rio festival in Brazil, Perry invited a young fan onstage to share a moment. The fan, overcome by emotion (and perhaps other things), couldn't stop touching her hero.

"She's kissing my neck!" Perry said to the crowd as the girl, who was wearing a smiley-face bra and who was identified by some sources as Rayane, dazedly hugged the "I Kissed a Girl" and "Roar" singer.

Photos: Katy Perry's craziest clothes Katy Perry performs at the 2015 Rock in Rio on Sunday, September 27, in Rio de Janeiro. Perry's fashion sense has always been fierce and untamed. Check out some of her wildest ensembles to date. Hide Caption 1 of 23 Photos: Katy Perry's craziest clothes Perry is honored during a handprint ceremony at TCL Chinese Theatre IMAX Forecourt on September 8 in Hollywood, California. Hide Caption 2 of 23 Photos: Katy Perry's craziest clothes Perry and Jeremy Scott attend the "China: Through The Looking Glass" Costume Institute Benefit Gala at the Metropolitan Museum of Art in May. Hide Caption 3 of 23 Photos: Katy Perry's craziest clothes Perry performs on the Prismatic World Tour early in 2015. Hide Caption 4 of 23 Photos: Katy Perry's craziest clothes Perry on the red carpet at the 2015 Grammy Awards. Hide Caption 5 of 23 Photos: Katy Perry's craziest clothes Perry performs at the Super Bowl XLIX halftime show in Glendale, Arizona, in February. Hide Caption 6 of 23 Photos: Katy Perry's craziest clothes Katy Perry visits "Late Night With Jimmy Fallon" in 2013. Hide Caption 7 of 23 Photos: Katy Perry's craziest clothes Katy Perry performs during the iHeartRadio Music Festival in 2013. Hide Caption 8 of 23 Photos: Katy Perry's craziest clothes Katy Perry attends the 2013 MTV Video Music Awards in New York. Hide Caption 9 of 23 Photos: Katy Perry's craziest clothes Perry gets political in a white latex ballot dress at a campaign rally for President Barack Obama on Wednesday, October 24, 2012, in Las Vegas. Hide Caption 10 of 23 Photos: Katy Perry's craziest clothes The singer looks like a sexy disco ball in Paco Rabanne at the 2012 Echo Awards in Berlin. She paired her mirrored frock with embellished Christian Louboutin pumps that spell "sex." Hide Caption 11 of 23 Photos: Katy Perry's craziest clothes Katy Perry performs at the 2012 Echo Awards in Berlin. Hide Caption 12 of 23 Photos: Katy Perry's craziest clothes Perry wears a body-skimming costume to perform "Part of Me" at the Grammys in 2012. Hide Caption 13 of 23 Photos: Katy Perry's craziest clothes Proving she's a fan of cubism, the singer picks up the award for video of the year at the MTV Video Music Awards in August 2011. Hide Caption 14 of 23 Photos: Katy Perry's craziest clothes The voice of Smurfette rocks this mini-dress on the blue carpet at the New York film premiere of "The Smurfs" in July 2011. Hide Caption 15 of 23 Photos: Katy Perry's craziest clothes There's a good chance Perry wasn't worried about her hips looking too big in the snowman dress she wore at KIIS-FM's Jingle Ball in December 2010. Hide Caption 16 of 23 Photos: Katy Perry's craziest clothes No stranger to making a statement at the MTV Europe Awards, Perry wears a shiny red ticket dress in November 2010 in Madrid. Hide Caption 17 of 23 Photos: Katy Perry's craziest clothes Perry's literally glowing on the red carpet at the Costume Institute Gala Benefit in May 2010 in New York. Hide Caption 18 of 23 Photos: Katy Perry's craziest clothes Resembling a piece of Swiss cheese, Perry dons this gown when performing at the MTV Europe Music Awards in November 2009 in Berlin. Hide Caption 19 of 23 Photos: Katy Perry's craziest clothes This "dicey" dress might make more sense in Sin City than the Big Apple, but the "Waking Up In Vegas" singer wears it to perform on NBC's "Today" in July 2009. Anchor Matt Lauer looks amused. Hide Caption 20 of 23 Photos: Katy Perry's craziest clothes The singer emerges from a golden banana dressed in this fruity costume while performing "I Kissed a Girl" at the Grammys in February 2009. Hide Caption 21 of 23 Photos: Katy Perry's craziest clothes Rather than deciding between a menswear-inspired ensemble and a frilly frock, Perry compromises with this two-sided look during the MTV Europe Music Awards in 2008. Hide Caption 22 of 23 Photos: Katy Perry's craziest clothes Perry wears an unconventional number to her Los Angeles record release party in June 2008. Hide Caption 23 of 23

The girl wouldn't stop, and Perry, finding other parts of her anatomy being clutched, let out some surprised whoops.

The girl did get at least one selfie for her trouble -- and took the opportunity to kiss Perry again.

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