Joe Jonas DJs & Parties with the Teenage Mutant Ninja Turtles

Joe Jonas may be having the best weekend ever.

The 26-year-old singer had an epic night, taking over as DJ at 1Oak in West Hollywood for a Video Music Awards event.

Joe brought along his girlfriend, Gigi Hadid, and brother, Nick Jonas, for the night. The venue was full of big names, like Robin Thicke, Lewis Hamilton, Tyrese Gibson and Future, and the middle JoBro even shut the place down by playing Nick's hit, "Jealous," -- which Nick sang along to!

Not only did he slay,he had pizza delivered for the crowd -- by the Teenage Mutant Ninja Turtles.

How jealous is the '90s kid in you right now?

Joe's busy day ended at 1Oak, but it didn't start there. He and Gigi went to a VMA pre-party together, where the two kept a low profile. A source tells ET that when it was time to leave, they snuck out the back door together to holding hands.

The cute couple was later spotted having dinner at Toca Madera in L.A.'s Beverly Grove neighborhood before heading up to West Hollywood for Joe's DJ set.

Nick will be sitting just a couple seats down from Gigi at Sunday night's MTV VMAs. Nick was nominated for Best Male Video for his song, "Chains," and will be debuting the music video for his latest single, "Levels."

Both brothers seemed to be getting into the spirit of the party-filled weekend just fine. At Friday night's Time Warner Cable and Lifebeat's MTV VMA concert in L.A., Joe snapchatted a video of Nick belting out "Let It Go" backstage. That's not as random as it sounds -- their pal Demi Lovato was performing the song on stage. It's also a side of Nick we never knew we needed to see, and it's amazing:

You can take the kid out of Disney, but you can never take the Disney out of the kid. Or the love of TMNT.

Nick and Gigi teamed up to give Joe an amazing birthday surprise in early August. See the results in the video below.