Chart star Mr Hudson and presenter Miquita Oliver were among the guests at a party to celebrate rock legends Nirvana.
They were at a gallery in east London to see photographs of live shows and band memorabilia, to coincide with the 20th anniversary of the group's breakthrough album Nevermind.
Guests watched a performance of Nirvana covers by reggae star Little Roy at the Loading Bay Gallery in Brick Lane.
Celebrations for the 20th anniversary include the release of a limited edition copy of frontman Kurt Cobain's Fender Jaguar guitar, which is to go on sale shortly.
And later this month a remastered version of the album will be released with previously unreleased tracks.
The free exhibition, In Bloom: The Nirvana Nevermind Exhibition, continues until September 25 and includes replicas of the band's stage gear as well as a fragment of one of Kurt's guitars.