STONE ROSES: Tickets for the band's Finsbury Park gigs go on sale at 9.30am. Good luck. Other gigs on sale this morning include Alt J, Stereophonics, Joe Satriani and Michael Buble. Full details of all gigs here. 9.30am
GIVE BLOOD: Make like Anne Boleyn and have your blood spilled at the Tower of London...well, the Hilton hotel close to the Tower, where the donor people will be on hand today (9.30am-11.30am and 1-4.30pm). Alternatively, bleed away at St Paul's Church Hall in Stoke Newington (1-3pm and 4.30-7.30pm). Just turn up
SKATING: The Natural History Museum's seasonal ice rink (opens 10am) is the first of several opening over the next few weeks. Check our list here, and get your tickets booked early.
DARK FILMS: The Barbican's Step Into The Dark season begins tonight, with a series of warped, dystopian, surreal or sublime movies for you to choose from. Seems to be plenty of tickets left. Programme here. £10.50 online, £11.50 on the door
CHARLIE BROOKER: Meet the sour-faced funnyman at Waterstones Piccadilly, where he'll be signing his new book. Free, just turn up, 12.30pm
SEIZE THE DAY: What would you do with your remaining days if you knew the date of your death? One of the questions explored in tonight’s late opening at Wellcome Collection, with talks, performances and music inspired by death. Free, just turn up, 7-11pm
ACOUSTIC: Catch Mark Gardener, singer-songwriter and guitarist from Ride, play a solo acoustic set at Jamm, Brixton. £12, 7.30pm
FIREWORKS: Displays take place in Coram's Fields (5pm), Kingston (6.30pm), Carshalton (7pm), Bishop's Park Fulham (7.15pm), Streatham Common (8pm) and Brockwell Park (8pm). Maybe even do a crawl round some of them. Get the full details of all this weekend's London displays in our roundup.
LATIN: As in the music, not the language. Catch Manteca at Floridita, Wardour Street. £10, 7.30pm
LATE OPENINGS: As usual on a Friday, the British Museum is open till 8.30pm, the National Gallery and National Portrait Gallery stay awake until 9pm, while the two Tates, the V&A and Royal Academy are dirty stopouts until 10pm. All free and just turn up
ROLLERBLADING: The weekly marshalled rollerblade around town begins from Hyde Park Corner. Anyone who feels confident on skates can turn up and take part. Free, just turn up, 8pm
QUEBEC FILM: Yet another international film festival begins today. The Quebec Cinema Showcase at the Institute Francais in South Kensington, has a three day programme from the francophone region. £10, 8.15pm
HIP HOP: DOOM, Rodney P, Yungun & Mr Thing and others do their thing in the cavernous interior of Village Underground, Shoreditch. £27.50, 9pm
GARAGE: Meanwhile, a couple of hundred metres away at The Book Club, Artful Dodger and friends put on a 90's house party. £5/£7, 8pm
Random London Fact of the Day
A band of hobbits would not feel out of place navigating along the Thames. The many islands and eyots often sport names straight out of a fantasy novel. Why not go questing for Raven's Ait, Pharoah's Island, Penton Hook Island, Sonning Eye, Magna Carta Island, Deadwater Ait and, of course, Eel Pie Island. Fans of old computer games might be happy to hear that there's even a Monkey Island.
In their 1966 hit, the Walker Brothers famously prophesied that the sun ain't gonna shine anymore. Well, it did. And has done many times since. The whole sorry incident proves that you shouldn't trust maudlin chart-toppers for your weather reports. Especially when they're not even real brothers. Or called Walker. (To be fair, the song was originally popularised by Franki Valli, who, with a backing band called The Four Seasons, really should have known more about solar occlusion.) Further evidence to confound their witless prediction comes today, when the sun is going to shine some more. All throughout the day, although perhaps with an annoyance of cloud here and there. BBC Weather has a less convoluted report.
Secretly Hidden False Rumour Of The Day
The Houses of Parliament are made from compacted biscotti.