Geri Halliwell - The redhead dramatically left the Spice Girls in 1998 to embark on a dismal solo career. She's kept up the dreadfulness with jaw-droppingly terrible new single 'Half of Me'.
Johnny Borrell - Borrell found success with Razorlight back in 2004 when indie rock was the biggest thing on the planet. The band disappeared and Borrell released a solo record, which sold a devastating 594 copies in its first week.
Mick Jagger - The Rolling Stones frontman released five solo albums to little acclaim. Bandmate Keith Richards quipped of 2001 effort Goddess In The Doorway: "It's like Mein Kampf - everyone had it, but no-one read it."
will.i.am - We're not saying Black Eyed Peas were The Beatles or anything, but we'd rather listen to them than the shit will.i.am unloads on the unsuspecting public on a regular basis.
Sting - Nothing was going to top The Police but Sting's soggy solo efforts whirring with panpipes and saxophones well and truly missed the mark. Him and his wife's constant bleating about their tantric sex didn't help either.
Sid Vicious - Before his death in 1978, Vicious embarked on a brief solo career, during which he recorded an ill-advised punk rock version of Frank Sinatra's swing classic 'My Way'.
Chris Cornell - The lead singer of Soundgarden and Audioslave bafflingly released an abysmal solo album with R&B producer Timbaland, which was slated by critics.
Ringo Starr - The former Beatles drummer was always sadly in the shadow of bandmates Paul McCartney, John Lennon and George Harrison. Debut solo effort Sentimental Journey was described as "horrific" by a Rolling Stone critic. Ouch.
The Edge - Did you know the U2 guitarist released a solo album in 1986, soundtracking the film Captive (us neither)? It featured a young Sinead O'Connor on vocals. It was bad.
Roger Daltrey - The appalling artwork for the legendary Who singer's second solo album Ride a Rock Horse is enough alone for him to be listed here, but musically his inconsistent solo efforts didn't fare well critically either.
David Lee Roth - The former Van Halen frontman released a painful cover of The Beach Boys classic 'California Girls' upon leaving the band. What followed was equally dreadful.
Billy Corgan: Everyone's favourite dress-wearing slap-head remains a giant in the world of operatic grunge rock with the seminal Smashing Pumpkins (and Zwan weren't half as bad as people make out, to be fair) - but the damp electro fart that was his solo effort TheFutureEmbrace shocked everyone with just how lacklustre it was.