Cardi B threw a launch party for "Season 2" of her Fashion Nova x Cardi B spring line at the Hollywood Palladium last night (5/8), and she also performed at it and brought out a few guests. Those guests included YG, Blueface, and most viral of all, Lil Nas X. Cardi introduced Lil Nas X by talking about the achievement of scoring a No. 1 hit (which she herself has done twice), and then she brought out the rising/viral rapper for his unstoppable country-rap hit "Old Town Road." Cardi acted as dancer/hypewoman while Lil Nas X played the song, and, as you'd probably expect, the crowd went totally nuts. Watch video below...