Paul McCartney has launched a set of sound stickers on Japanese messaging app Line to coincide with the Tokyo stop on his Out There tour.

This is actually McCartneys third set of Line stickers – his first was launched back in October 2013 – but the first to feature audio.

The ex-Beatle recorded a set of phrases in English and Japanese, which have been turned into stickers that Line users can buy and send to their friends.

Stickers are a major source of revenue for Line – back in 2013, they brought in over 3bn Yen (£16.5m) – and potentially for McCartney too, with this set of stickers sold as an in-app purchase worth around £1.50.

Line is a big deal for the pop star – he has over 10m followers on the service, bigger than his Twitter and Facebook following combined – and he seems to have embraced it. As well as the stickers, McCartney has an avatar and virtual room in the Line Play game, where users can download collectible items themed around his latest tour of Japan.