'Grenade' is No. 1 on U.S. record chart

LOS ANGELES, Jan. 13 (UPI) -- Bruno Mars's "Grenade" is No. 1 on the U.S. record chart, Billboard.com reported Thursday.

Coming in at No. 2 on the Hot 100 is Katy Perry's "Firework," followed by Rihanna's "What's My Name" featuring Drake at No. 3, Ke$ha's "We R Who We R" at No. 4 and P!nk's "Raise Your Glass" at No. 5.

Rounding out the top tier are Enrique Iglesias's "Tonight (I'm Lovin' You)" featuring Ludacris at No. 6, DJ Frank E. Wiz Khalifa's "Black and Yellow" at No. 7, the Black Eyed Peas's "The Time (Dirty Bit)" at No. 8, Bruno Mars's "Just the Way You Are" at No. 9 and Rihanna's "Only Girl (In the World)" at No. 10.