Videos: Hashtags in music

A number of new pop singles have hashtags in their titles. Will it be taken to two hashtags?

This #fever got started with will.i.am's and Justin Bieber's #thatPOWER. Pitbull, Jlo and Mariah Carey followed the new marketing trend.

Watch music videos for top of that charts hashtags songs below:

Will.i.am feat. Justin Bieber #thatPOWER

Mariah Carey feat. Miguel #BEAUTIFUL

Jlo feat. Pitbull #LiveItUp