Rappers performing at rich kid's birthday parties is nothing new, but a recent party Migos attended may take the cake for being the most expensive event thrown.

According to the Daily Mail, the Atlanta trio were just one of the performers at 18-year-old Thomas Henry Jr.'s $4 million birthday party. Thrown by his millionaire lawyer father, Thomas J. Henry Sr., entertainment also included Latin singer J Balvin and producer Diplo.

Other celebrities in attendance were Ashanti, singer Lance Bass, actress Rumer Willis and model Joanna Krupa. It's also not the family's first lavish party. Last year, Henry Sr. threw his daughter a $6 million quinceañera.

In related Migos news, the rappers were recently nominated for two awards at the upcoming 2018 Grammys. The group's Culture album will go head-to-head against JAY-Z's 4:44, Kendrick Lamar's DAMN., Tyler, The Creator's Flower Boy; Rapsody's Laila's Wisdom for Best Rap Album, while "Bad and Boujee" is up for the Best Rap Performance award.

Migos' next album, Culture 2, will drop in January 2018. The release date was revealed during a New York Times profile piece on the Atlanta-based record label Quality Control Music.

"Now, with two well-oiled moneymakers who have refused to fizzle—Lil Yachty’s Lil Boat 2 mixtape is scheduled for late December and Migos’ Culture 2, featuring the single 'MotorSport,' is due out in January," reads a section of the article.

The group will also be featured on the upcoming Quality Control compilation project, Control the Streets: Volume One, which is out Friday (Dec. 8).

See New Music Releases for December 2017

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