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While Marc Jacobs partied hard in London this week, his former partner Lorenzo Martone was on Twitter confirming rumours that the pair had split.

He tweeted: "thanks for t[he] notes. yes, I saw t[he] press today. We are not together, haven't been in 2 months. And we will not comment on it. Sorry. We r fine."

Meanwhile, Marc seemed to show no signs of a break-up while celebrating the launch of his latest fragrance, Bang.

Joined by Mischa Barton, Daisy Lowe, Beth Ditto, and Madonna's beau Jesus Luz who played DJ, the designer admitted that he has "worked really hard" to change his lifestyle and "get healthy." Jacobs and Martone announced they were engaged early last year.

[Image: Rex Features]