Three things you won't want to miss in London this Tuesday

1. Let Kirsty Young cast you away with the help of the St Catherine Girls' Choir, who will be performing beneath the beautiful dome of St Paul's Cathedral tonight for the Unicef UK Christmas Carol Concert. Tickets from £35. 

2. Want to get your fill of great cinema without box office prices? Hightail it to the Herne Hill Free Film Festival where you can watch British indie movie 'Jet Trash' for exactly zero pounds and zero pence. 

3. Get down to Lower Marsh Market at 6pm today for an epic Waterloo Christmas sing-a-long. Choirs from across London will be accompanied by a brass band for maximum festive feels.