In August 2014, Campbell announced he had reunited with former UB40 bandmate Astro, who also left due to management disputes and the musical direction of the band.

[citation needed] Campbell scored a number 1 hit in 1994 as featured artist, along with brother Robin, on Pato Banton's cover of The Equals' "Baby Come Back".

[citation needed] In October 2007, Campbell released a solo album titled Running Free.

[3] Critic David Jefferies of AllMusic said of the album, "Longtime fans will appreciate that Campbell's voice is as strong as ever, but it deserves a better showcase than this mixed bag".

[6] In August 2014, Campbell announced that he had reunited with former UB40 bandmates Astro and Mickey Virtue to record a new album, Silhouette.

[8] They initially toured under the name 'UB40 featuring Ali, Astro and Mickey', leading to legal action brought by the other UB40.

[14] In July 2021, vocalist Matt Hoy quit the band,[15][16] while on 6 November 2021, the group's social media announced that Astro had died after a short illness.

[17] In 2022, the first single from the band's final album with Astro, "Sufferer" was released, which was joined in the countdown as shown on The Heritage Chart Show[18] by Matt Hoy's solo single "We Are One", a fact which was picked up by presenter Mike Read on the programme broadcast on Talking Pictures TV on 10 April 2022.