touched down in Los Angeles just in time to revel in the glamour of Hollywood’s biggest night.

A source tells ET that the duo was spotted among the constellation of stars at Gucci’s exclusive 16th annual event, “The Party,” which was hosted at talent manager Guy Oseary’s lavish residence on Sunday night.

The source added the GRAMMY-winning songstress and the Kansas City Chiefs’ tight end were in high spirits throughout the evening, seen smiling, dancing, and engaging in conversations with friends.Meanwhile, an eyewitness tells ET that the couple selected “The Party” because “they knew they would have privacy there.” The eyewitness added, “They had a great time and were super cool to the other attendees. They felt like they could relax and kick back because of the no cellphone and photo policy.

They spent most of the night close together and by each other’s sides and looked happy and in love. They also spent time talking and hanging out with Miles and Keleigh [Teller].” Swift and Kelce rubbed shoulders with Oscar winners Billie Eilish and Cillian Murphy, as well as other luminaries such as Matthew McConaughey, Jodie Turner Smith, Leonardo DiCaprio, Colman Domingo and Jennifer Lawrence, adding their own star power to the soirée.