'Heart' is No. 1 on the U.S. record chart

Lady Antebellum's "Need You Now" is No. 2, followed by Young Money's "BedRock" at No. 3, Rihanna's "Rude Boy" at No. 4 and the Black Eyed Peas's "Imma Be" at No. 5.

Rounding out the top tier are Ke$ha's "TiK ToK" at No. 6, Train's "Hey, Soul Sister" at No. 7, Jason Derulo's "In My Head" at No. 8, Lady Gaga's "Bad Romance" at No. 9 and Ludcris' "How Low" at No. 10.

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