Katy Perry's "I Kissed a Girl" starts a third week atop the Billboard Hot 100 this week, but Rihanna's "Take a Bow" is closing in fast, rising 4-2 in its 13th week on the tally. Lil Wayne's "Lollipop"

Katy Perry's "I Kissed a Girl" starts a third week atop the Billboard Hot 100 this week, but Rihanna's "Take a Bow" is closing in fast, rising 4-2 in its 13th week on the tally. Lil Wayne's "Lollipop" slides 2-3, while Leona Lewis' "Bleeding Love" drops 3-4.

Coldplay's "Viva La Vida" is up 6-5 this week, while Chris Brown's "Forever" ascends 8-6 and Natasha Bedingfield's "Pocketful of Sunshine" jumps 10-7. The Jonas Brothers' "Burnin' Up" is at No. 8 after debuting at No. 5 last week, while Plies' "Bust It Baby Pt. 2" featuring Ne-Yo is down 7-9.

Miley Cyrus' "7 Things" rises 16-10 and is the chart's top digital gainer, after selling 117,000 downloads. Her new album, "Breakout," arrives July 22 via Hollywood.

The chart's top debut this week comes from DJ Khaled's "Out Here Grindin" at No. 38. The cut, which features Akon, Rick Ross, Young Jeezy, Lil' Boosie, Trick Daddy, Ace Hood and Plies, sold 53,000 digital downloads.

Also new at No. 51 is John Mayer's cover of Tom Petty's "Free Fallin'," which sold 51,000 downloads. Petty's 1990 original sold 64,000 downloads in February following his Super Bowl performance.

Keyshia Cole's "Heaven Sent" is No. 1 for a fifth week on Hot R&B/Hip-Hop Songs, where T.I.'s "Swing Ya Rag" is the top debut at No. 59. The rapper simply posted the song on his MySpace page, prompting early airplay.

On Hot Country Songs, Blake Shelton's cover of Michael Buble's "Home" jumps 2-1, earning the artist his first chart-topper here since 2004's "Some Beach."

Billboard's rock charts are still unchanged at the top, with Weezer's "Pork and Beans" at No. 1 on Modern Rock for a tenth week and Disturbed's "Inside the Fire" leading Mainstream Rock for a tenth as well.