After a couple of years writing, Adams made a comeback with a new solo recording contract with BMG Records. His first solo single, "Sorry", peaked at number 18 on the UK Singles Chart in June 2005. As well as writing for himself, Adams began writing and producing for the likes of Robin Thicke, Craig David, JLS, Sam Bailey, Amelia Lily, Markus Feehily, Union J and Alexandra Burke to name but a few. Adams also co-wrote the Lisa Scott-Lee single "Electric" with Guy Chambers, as well as a song called "Get Off My Girl" with Har Mar Superstar.