Pitbull and Ke$ha continue their reign at No. 1 on the Billboard Hot 100 as “Timber” spends its third week in the top spot.

It fends off a charge from Katy Perry, whose “Dark Horse,” featuring Juicy J, trots 4-2. If it reaches the summit, three co-ed collaborations in a row will have hit No. 1 following “The Monster” by Eminem and Rihanna and “Timber.”

Perry’s ascension pushes OneRepublic’s “Counting Stars”  down 2-3 and the aforementioned “The Monster” down 3-5. A Great Big World’s “Say Something,” featuring Christina Aguilera rebounds 5-4, according to Billboard.

Passenger’s “Let Her Go” holds at No. 6 and Lorde’s “Royals” at No. 7. Lorde pulls off a neat feat: she also holds the No. 8 song with “Team” leaping 11-8.  One Direction’s “Story of My Life” rises 10-9 and Bastille’s hit “Pompeii” makes its first appearance in the Top 10, moving 12-10, more than three months after it topped Billboard's Alternative Songs chart.