AceShowbiz -

Katy Perry channeled her inner rap star when performing for BBC's Radio 1 Live Lounge recently. During the set, the pop singer performed her rendition of Jay-Z and Kanye West's "Watch the Throne" single "Ni**as in Paris".

"This is about to get real embarrassing," Katy said before launching into the rap song. Wearing a Yankees cap, she kept the expletive-laden lyrics clean by censoring herself multiple times. For example, she spat the word "mofo" instead of "muhf**ka."

Aside from performing for Radio 1, Katy also made an appearance to support BBC's "Let's Dance for Sport Relief". Donning a superhero-inspired outfit, the 27-year-old singer delivered her current hit single "Part of Me" on the laser-beams stage.

Katy Perry is preparing to release "Teenage Dream: The Complete Confection" in the United States on March 27. Most recently, one of the new songs "Wide Awake" from the upcoming "Teenage Dream" repackage hit the web in its entirety.

For a future project, Katy is working on a duet with her BFF Rihanna. The collaboration was revealed by Riri when doing an interview with Access Hollywood. "We have been working on this for years. We still are trying to make a song together, Katy Perry and I," she spilled.

The Barbados singer went on by gushing about Katy, "She's very uncalculated, very sure of herself, and that's something very rare in this industry to find." She added, "The song will probably come out in a while. I won't say that it's happening right now, but it's going to happen."

Katy Perry Raps "Ni**as in Paris":

Katy Performs "Part of Me":

"Wide Awake" Audio Stream: