A Special Guest Transforms 'Top 20', Jennifer Lopez Brings Lots Of Booty + More On First Dibs

By Rahsheeda Ali

September 19, 2014 / 9:00 AM

Top 20's Jim Shearer tries to handle a rude guest, Jennifer Lopez becomes booty buddies with Iggy Azalea, Lady Gaga has a new scent, and more from today's First Dibs.

Jennifer Lopez is all about butts in her new video, "Booty," which features Iggy Azalea. [VH1]

Megatron, the Transformers' nemesis, is totally uptight. He couldn't even tell VH1's Jim Shearer his favorite song of the summer! Watch the clip below to see the Decepticons' leader in our sneak peek of this week's Top 20 Countdown. Tune in to VH1 tomorrow morning at 9/8C for the full show.

[mtvn_player vid="1083162" autoplay="true"]

Six Iranians who created a tribute video for Pharrell Williams' "Happy" were sentenced to prison and 91 lashes. [BBC News]

Demi Lovato has tapped a motivational speaker to open her live shows instead of having a band. [People]

Dr. Dre's long-awaited album is reportedly no longer called Detox. [Spin]

Lady Gaga released an ad for her new fragrance, Eau de Gaga. [MTV News]

Fat Joe is getting sued by Big Pun's widow over music royalties. [Vibe]

[Photo Credit: VH1]