This week the PopCrush Top 10 Video Countdown saw a major shakeup! Top Three regulars Backstreet Boys moved into the No. 1 slot and two new artists cracked the top 10!

John Mayer entered the entered the countdown in the No. 9 spot, edging out Justin Bieber's 'All That Matters,' which came in at No. 10. Fans boosted Britney Spears into the No. 5 spot, while her little sister Jamie Lynn snagged the No. 6 slot.

Countdown regulars like Demi Lovato and One Direction held onto spots in the Top 5, but will the addition of new videos next week shake things up even more?

The poll will be open until 3PM ET on Thursday, so make sure to vote for your 10 favorite videos once an hour. We’ll announce the new champs of the PopCrush Top 10 Video Countdown on Jan. 16 after 4PM ET!

  • 10

    Justin Bieber, 'All That Matters'

  • 9

    Rihanna, 'What Now'

  • 8

    John Mayer, 'Who You Love' Feat. Katy Perry

  • 7

    Miley Cyrus, 'Wrecking Ball'

  • 6

    Jamie Lynn Spears, 'How Could I Want More'

  • 5

    Britney Spears, 'Perfume'

  • 4

    Demi Lovato, 'Let It Go'

  • 3

    Katy Perry, 'Unconditionally'

  • 2

    One Direction, 'Story of My Life'

  • 1

    Backstreet Boys, 'Show 'Em'