Showbiz
Rex Features
Allen and Simons have sent updates to their friends on the site, claiming that they are "in a relationship" with each other.
Friends of the couple posted messages on their pages, wishing them well with their rekindled romance.
Glastonbury organiser Emily Eavis commented: "We knew it! What a hullabaloo."
A source told The Sun: "Ed was there for Lily when she really needed him and that has brought them closer together. They have decided to give it another go."
The pair split up in February shortly after Allen suffered a miscarriage. However, the pair were rumoured to have patched things up after they spent most of the Glastonbury Festival together last month.
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