NEWSWatch Katy Perry Perform Rihanna's "Only Girl" & Willow Smith's "Whip My Hair!"
By:OK! Staff
Feb. 22 2011, Published 3:45 p.m. ET
Katy Perry sang a tribute song to Rihanna over the weekend for her 23rd birthday by covering her BFF's hit, "Only Girl (In the World)."
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Katy was performing in Lisbon, Portugal on Sunday and sang Rihanna's song in an acoustic version, Celebuzz reports.
And while she was at it performing covers, Katy also decided to take on Jay-Z's "Big Pimpin" and Willow Smith's "Whip My Hair!"
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Which cover do you like best?
OK! VIDEO: KATY PERRY'S HEAVENLY GRAMMY PERFORMANCE PAYS TRIBUTE TO HER WEDDING WITH RUSSELL BRAND
Watch the performance below!
