"Tonight Again" is a song by Australian recording artist Guy Sebastian, premiered on 16 March 2015 before being released as a single on digital platforms on 7 April.

"Tonight Again" appears as the final track on the European edition of Sebastian's eighth studio album, Madness (2014).

At a press conference held at the Sydney Opera House on 5 March 2015, it was announced that the Australian public broadcaster, Special Broadcasting Service (SBS), had internally selected Guy Sebastian to represent Australia at the 2015 Eurovision Song Contest.

He collaborated with fellow songwriters David Ryan Harris and Louis Schoorl whom he had worked previously on other projects.

But if I was to record a new song, I wanted it to be homegrown and organic with my band in my studio.