Before the party, all three Jonas brothers enjoyed a late dinner at the restaurant Mamo NYC, where Joe and Sophie had had their engagement party, a source told E! News exclusively. They sat in the back area and stayed for about two hours.
Joe and Sophie were adorable as they sat together. Kevin and Danielle showed some PDA. The group ordered all of Mamo's specials, such as the truffle pizza and pasta dishes, and left around 10.
Iggy, accompanied by a security guard, joined Nick midway through the meal and the two appeared to enjoy a friendly chat.
French Montana co-hosted the Global Citizen and TIDAL pre-Grammys party at the rooftop PH-D Lounge at Dream Downtown. The club was packed and filled with many Roc Nation employees and guests.
On Saturday afternoon, Beyoncé, Jay-Z, Mariah Carey and a slew of other celebs attended Roc Nation's pre-Grammys brunch at One World Observatory.
The 2018 Grammy Awards will be hosted by James Corden and will air live from Madison Square Garden in New York City on CBS on Sunday, January 28 at 7:30 p.m. ET / 4:30 p.m. PT.