Like Lily Allen before her, the British-bred but wholly Irish Kate Nash launched her career on MySpace (remember MySpace? It was kinda like Facebook, only clunkier). In fact, Allen was an early champion of Nash's piano-driven pop. Nash's latest album is My Best Friend Is You. Monday, Nov. 15. Nightclub 9:30, 815 V St. NW. Tickets are $20. Doors at 7 p.m. Call 202-265-0930 or visit 930.com.