Mac Miller and Ariana Grande have been trying to downplay their rekindled relationship (check out this timeline for proof), but the couple displayed their oh-so-cute affection for each other in this new "My Favorite Part" performance. The collaboration, which is found on The Divine Feminine, marks the first time they sung it together.

The rapper and pop star giggled, smiled and flirted throughout the casual performance. "Pleasure working with you. Good stuff," Miller jokingly says after shaking Ari's hand. She adorably responds with, "I'll be in touch!" It was all captured for Miller's concert special for DirecTV’s AUDIENCE Network, which aired on Sept. 30.

The Divine Feminine, Miller's fourth LP, was released on Sept. 16 and features "Dang!" with Anderson .Paak and "We" with CeeLo Green. Flip through our ranking of every Ariana Grande song collaboration, and check out a throwback Fuse interview with Mac Miller where he talks sophomore LP Watching Movies with the Sound Off: