America's new singles chart is all about the butt, with Meghan Trainor's All About That Bass scoring a third week at number one and Jennifer Lopez's Booty bumping its way to 18.

All About That Bass leads an all-female top five for a third week, keeping Taylor Swift's Shake It Off at two and Jessie J, Ariana Grande and Nicki Minaj's Bang Bang at three.

Minaj's Anaconda and Azalea's Black Widow round out the top five.

J.Lo's Booty, which comes with a sexy new video featuring the sweaty singer and pal Azalea shaking their rumps, rockets into the top 20 and becomes Lopez's 28th Billboard Hot 100 hit in 15 years.

Meanwhile, Barbra Streisand has beaten Chris Brown to the top of the new U.S. album chart - her duets album Partners is the singer's 10th number one. Streisand is now the only artist to land number ones on the Billboard 200 in each of the past six decades.