The singer celebrated his 31st birthday alongside his girlfriend Megan Fox and famous friends.

American star Kourtney Kardashian and her boyfriend Travis Barker joined Machine Gun Kelly and his girlfriend Megan Fox as the singer celebrated his 31st birthday.

The Bad Things singer took to his Instagram account and shared a glimpse of his birthday celebrations with friends and his girlfriend, Megan Fox.

In one of the images shared by Machine Gun Kelly, the Keeping Up With The Kardashians star and her boyfriend are seen posing with the birthday boy and his girlfriend.

The singer shared the images with the caption “I’ll grow up next summer … Honestly, birthday boy.”

Meanwhile, Megan Fox also posted a love photo with Machine, with a sweet birthday note.

She wrote “Happy birthday, blonde angel, baby.”

The endearing post has won the hearts of fans on social media.