"Memories Back Then" is a song by American hip hop recording artist T.I., featuring guest appearances from fellow American rappers B.o.B and Kendrick Lamar, as well as American singer-songwriter Kris Stephens. The song, produced by Maurice "Kenoe" Jordan, was first released as a single on April 22, 2013. The song debuted and peaked at number 88 on the US Billboard Hot 100 chart.

T.I. had initially recorded "Memories Back Then", for his eighth studio album Trouble Man: Heavy Is the Head (2012). In an interview released on October 19, 2012, West Coast rapper Kendrick Lamar revealed that he recorded a song with T.I., for the aforementioned album. The song was also reported to feature B.o.B and sample Belgian-Australian singer-songwriter Gotye's hit single, "Somebody That I Used to Know". Although the track failed to appear on Trouble Man due to sample-clearance issues, B.o.B announced the song would be the first single from the Grand Hustle Records compilation album, Hustle Gang.

The song's mass appeal attracted T.I. to the sample: "The record's just jamming. When I heard the twist they put on it, man, it was kind of a no-brainer." T.I. also chose the record for its crossover ability, which he has always been successful with in the past: "It sounds like hip-hop with an international twist to it, and I'm known for taking those types of records and bridging that gap between what we do and what they do," he explained, dropping in a couple of examples. "From M.I.A.'s 'Paper Planes' to 'Swagga Like Us,' we took [Crystal Waters'] 'Gypsy Woman' for 'Why You Wanna.'"

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