"To Love Again" is the first single from a re-release of Alesha Dixon's second album, The Alesha Show, entitled The Alesha Show - Encore released by Asylum Records. The song is produced by John Shanks and written by Gary Barlow, and is one of four new tracks that appears on the re-release. Bimbo Jones has done a club remix for the song. The first week sales raised from the song were donated to Children in Need.

Dixon and Barlow met in Los Angeles with John Shanks and penned the song within the day. Dixon wrote the lyrics about recovering from her divorce with MC Harvey a few years previously. Barlow stated, "We all sat around the piano and To Love Again was created throughout that afternoon. Later that night we recorded the song. It was clear this would take a big vocal performance. I hadn't heard anything like it on Alesha's record. She went in the vocal booth and killed it. It was a joy to watch. Take after take she really nailed it." Dixon praised Barlow, describing him as a "genius" and explained the reason for creating the track together; "We've become really good friends since going up the mountain together for Comic Relief. He is a genius so it was an absolute honour to write the song with him."

"To Love Again" is a R&B influenced ballad that lasts 3 minutes and 51 seconds. The song consists of 67 beats per minute; a moderate tempo. The instruments primarily used throughout the song are the piano and the guitar. The song is written in the key of A minor and Dixon's vocal range spans from F₃ to C₅. Fraser McAlpine of the BBC commented that "it's a plaintive ballad, which starts kind of small and intimate and ends kind of huge and expanded [...] It sounds for all the world like a classic Gary Barlow ballad - a slower 'Patience'". The Daily Star described "To Love Again" as "an epic ballad that will surprise many of Alesha's fans". Music website TeenToday noted Dixon's vocal ability, saying " Dixon's voice has never sounded better – and in fact, seems to have got a bit stronger".

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