By Breaking Celebrity News Staff

Justin Timberlake and Jessica Biel's engagement brought out a bevy of their star friends for a party hosted by celebrity stylist Estee Stanley.

Ellen DeGeneres, Amy Adams, record producer Timbaland and Timberlake's former 'N Sync bandmates Lance Bass and JC Chasez were all there.

A DJ played songs by Madonna, Michael Jackson and Whitney Houston, and a source told People the soon-to-be-marrieds "looked very happy."