Hot on the heels of the Pet Shop Boys’ foray into ballet for Sadler’s Wells next month, it’s revealed that Sir Paul McCartney has composed a ballet for New York City Ballet, a love story called Ocean’s Kingdom.

Scheduled to premiere on 22 September, the four-act ballet so far has 45 minutes of music, and a cast of around 40. The New York Times reports that the first act is having its first run-through next Thursday at the Lincoln Center, NYCB’s home stage.

It wasn't memorialised in HD. But last night Ringo Starr turned 70 and welcomed Paul McCartney onstage at Radio City Music Hall in New York for a musical celebration. There was only one song they were going to perform, and a thousand mobile phone cameras were duly held aloft to capture it. The results have sprouted overnight on YouTube, and they all have the grainy shakycam quality of all that old footage from the Cavern Club.