Watch Red Hot Chili Peppers’ Chad Smith join Babymetal on stage in London

The Japanese metallers have just finished supporting the Chilis on their UK arena tour

The Red Hot Chili Peppers drummer Chad Smith joined Babymetal on stage in London last night (December 18).

The Japanese metal troupe finished a stint supporting the Chilis on their UK arena tour at The O2 in the capital yesterday with another high-energy show, before their previously-announced special guest joined them on stage.

Read more: Babymetal confused the hell out of Americans with their debut TV performance

Sneaking onto the drum kit after Babymetal had finished their performance of break-out single ‘Gimme Chocolate!!!’, Smith – who had dressed up and had his face painted in the style of Babymetal’s musical faction, the Kami Band – replaced drummer Hideki Aoyama behind the kit to perform a drum solo.

The rest of Babymetal then joined Smith to close their support slot with a Judas Priest medley (‘Painkiller’ and ‘Breaking The Law’). Smith then presented lead vocalist Su-Metal with a birthday cake for her 20th birthday, before leading The O2 crowd in a rendition of the ‘Happy Birthday’ song.

Watch fan-shot footage of Smith’s short stint as a member of Babymetal below.

Meanwhile, Smith’s wife Nancy Mack was caught up in a bizarre fracas last week with Happy Days actor Scott Baio – apparently because he was a Trump supporter. Read more about the story here.