We know that Google is fond of puzzles, and it may be using a few of them to tease the launch of Android 4.4 KitKat. Nestle’s @KitKat Twitter account has posted two musical references (embedded after the break) that suggest the OS could appear on October 28th. The first, “everybody dance now,” clearly points to C+C Music Factory — originally known as The 28th Street Crew. The second hint may be an allusion to Michael Jackson’s This Is It movie, which reached stores on (you guessed it) October 28th.