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Ashley hit up the karaoke to sing 'Just The Way You Are' to Cheryl.
The couple, who are said to be back together, recently attended a house-warming party at a mate of Ashley Cole's and this is where his romantic serenading took place.
Ash picked the Bruno Mars ballad to impress his ex-wife, despite not being 100% in tune.
"Ashley pretty much murdered the song," a source revealed.
"But Cheryl loved it."
Despite recent cheating allegations, the pair are reportedly back on and Cheryl sang wedding favourite 'Amazed' by Lonestar at the bash.
"It was clearly about Ashley," the source told The Sun.
Cheryl and Ashley wanted to keep their reconciliation quiet but as well as the karaoke party, the couple had dinner at Cheryl's Girls Aloud bandmate Kimberley Walsh's house and are said to be planning a holiday together.