Rosie McClelland and Sophia Grace Brownlee at Wango Tango 2012

Sophia Grace Brownlee (R) and her hype girl (and cousin) Rosie McClelland hit the blue carpet at Wango Tango in their standard tiaras and tutus attire. Cute! The girls are best known for their cover of Nicki Minaj's 'Super Bass' song, and have since been picked up by Ellen as a regular part of her talk show.

Photo by Getty Images May 14, 2012

PHOTOS: WANGO TANGO 2012

Justin Bieber flashes his undies while Perez Hilton flashes his chest. Check out the star antics at KIIS FM's annual concert event, Wango Tango.

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