A Love Letter to You 4 is the fourth commercial mixtape by American rapper Trippie Redd. It was released on November 22, 2019, by TenThousand Projects and Caroline Distribution. The project features guest appearances from Lil Mosey, Juice Wrld, YNW Melly, Chris King, Quan'ta, YoungBoy Never Broke Again, Smokepurpp, Tory Lanez, DaBaby, Lil Yachty, Pi'erre Bourne, Youv Dee, Lil Wop, and Mariah the Scientist. The deluxe edition was released on February 21, 2020, featuring additional guest appearances from Chance the Rapper, Russ, Young Thug, Lil Tecca, Lil Durk, G Herbo, and SahBabii.