Two-day pop concert takes place at Powderham Castle in Exeter on 28 and 29 May.
Brown, 27, has transformed his image since becoming a father for the first time in 2014
Harris, 32, received facial injuries in the Los Angeles car crash on 21 May.
The 17 unfinished tracks have been leaked on YouTube and Soundcloud.
US girl group's second album, released on 27 May, features hit single Work From Home.
Up-and-coming Brooklyn rapper Troy Ave charged in attack.
Almost 5 months on, Duncan Jones says he is thankful he had a chance to say goodbye.
Even with just one studio album, Hill has amassed a collection of phenomenal hits
From his celibacy vow to that Angelina Jolie revelation, there are many layers to Mr Kravitz.
Graham, 28, featured as Jonas' love interest in his band's latest video
Irving Plaza concert descended into chaos after shots were fired.
Exclusive: Tedder talks to IBTimes UK about rivalry between the singers ahead of Grammys 2017.
Anna Fantastic says Prince would have been unimpressed by Madonna's musical tribute at the Billboard Music Awards.
Chance's third mixtape Coloring Book is first album to chart solely based on streams.
US group's second album 7/27 set for release on Friday 27 May