Actor Dick Van Dyke has celebrated his 90th birthday with a Mary Poppins-themed flash mob.
Fans have paid tribute to Van Dyke's character Bert from the classic musical Mary Poppins by dressing as chimney sweeps as they danced and sang tunes.
Others wore striped jackets, like the one Van Dyke wore in the Jolly Holiday scene.
Van Dyke looked on from the balcony of a Los Angeles outdoor shopping mall with his wife Arlene before immersing himself in the crowd for a sing-along of Let's Go Fly A Kite.
