Lily Allen has led tributes to Peaches Geldof.
The TV personality and DJ, 25 - who has sons, Astala, 23-months, and Phaedra, 11-months, with husband Tom Cohen - was found dead at their family home in Kent, England on Monday afternoon.
The Hard Out Here hitmaker was among dozens of celebrities to express her condolences on Twitter, writing: "My thoughts are with the Geldof's at this awful time. I hope they get to grieve in peace. Peaches, rest in peace gorgeous girl."
The X Factor judge Sharon, whose husband, Ozzy Osbourne, and their children Jack and Kelly Osbourne have all battled addictions in the past, wrote on Twitter: "Devastated about @peaches_g. Sending condolences & respect to the Geldof family. It's unimaginable what they must be going through right now"
Danny Jones from McFly tweeted: "So so sad to hear about Peaches Geldof. #RIPPeachesGeldof"