Jimmy Fallon [1] is known for his hilarious lip-sync battles [2] on The Tonight Show, but his latest one featuring Ariana Grande [3] takes that to a whole new level. On Monday, the host joined the "Dangerous Woman" singer [4] for a Lip Sync Conversation, and it's pretty hilarious. Not only do they cleverly incorporate some of Beyoncé's best lyrics from Lemonade [5] while chatting about mundane things, but they also bust out hit songs from artists like Justin Bieber and Sia. See the full video above, and then check out Ariana's best celebrity impressions [6].