sentences:  She started rehearsing for a show at House of Blues venues in secret, and pulled out of a surprise performance on April 25, 2007, at Los Angeles nightclub Forty Deuce.After a marquee reading "The M+M's" at the House of Blues in San Diego, California, appeared in late April 2007, media sources identified the act as Spears, and the show quickly sold out.The title, "M+M's" code name was claimed to be Mother (after having two children) and Miss (after being divorced).