Signature

Signature is the debut studio album by American singer Alessa Celli.

Singles
"What You Like", which features British singer Harry Styles, was released as the album's official lead single on May 7, 2018. The song was written by Celli, in collaboration with Styles, as well as the song's producers Babyface and Ariel Rechtshaid. It debuted at number 11 on the US Billboard Hot 100, marking Celli's first appearance on the chart. The song received a double platinum certification by the Recording Industry Association of America (RIAA).

"Say It" was released on July 16, 2018, as the second single from the album. The song debuted at number 86 on the US Billboard Hot 100, later peaking at number 10. The track has since been certified double platinum by the RIAA.

"Overnight", featuring Canadian singer Michael Buble, was sent to US radio alongside the release of the album, as it's third and final single. The song would go on to peak at number 7, Celli's highest appearance at the time, spending 16 weeks on the Billboard Hot 100. As of 2024, the song has sold 810,000 digital copies and is certified quadruple platinum by the RIAA.