|Chris Evans & Minka Kelly|
The 'Roommate' actress, 33, and the 'Avengers' actor, 32, who rekindled their relationship in September after briefly dating in 2007, spent much of Monday evening snuggling in a cosy booth together as they watched the 31-year-old 'Run the World' hitmaker perform as part of her 'Mrs Carter Show' world tour.
A source previously revealed that the couple has been trying to take their relationship slowly because Chris, who was previously linked to Jessica Biel, was hurt when Minka, who has also dated Jake Gyllenhaal, suddenly ended their romance six years ago but they are now both really into each other.
The insider said: "She did a number on him back then. But she reached out to Chris this time. He's still a little insecure, so he's being cautious."
The couple were joined by a string of other well known celebrities at the Dell takeover of HYDE Lounge at the Staples Center, including Seth Rogen and 'Glee' stars Lea Michele, Naya Rivera and Chris Colfer, as well as Brittany Snow, Derek Hough, Karina Smirnoff, Tiffani Thiessen, Jason Alexander, Tyler Hoechlin and Bella Thorne.
The VIP guests of Dell gave Beyoncé a standing ovation after dancing along to some of her biggest hits and indulging on glasses of Mark West wine.
Other guests at the concert included Kourtney Kardashian and Kendall Jenner, who were given front row seats by Beyoncé, who is good friends with their sister Kim's boyfriend Kanye West.