Which track from '25' did Adele co-write with Bruno Mars?

Which track from 25 did Adele co-write with Bruno Mars? “All I Ask” is the track. Adele and Bruno Mars wrote it with Philip Lawrence and Christopher Brody Brown, while Mars’s Smeezingtons team produced it.

The song began during writing sessions for Adele’s third studio album, 25. Mars and Adele initially tried to make an uptempo song, but the session evolved into a dramatic piano ballad about wanting one final intimate night before a relationship ends. They completed the song across two writing sessions.

“All I Ask” became known for its demanding vocal performance and emotional, old-school ballad style. Adele has described the singing as among her most showy performances. The song was not the album’s lead single, but it drew attention through live appearances, including performances on The Ellen DeGeneres Show and at the 2016 Grammy Awards. “Million Years Ago” and “River Lea” are also on 25, but they have different co-writers.