If by well-known you mean contemporary music, two "pop" songs I like are Enrique Iglesias' *Bailamos* -- it's technically a samba, but also is really nice cha cha. Another one, currently on the radio (at least locally), is Leann Rimes' *Can't Fight the Moonlight* Other possibles: Celine Dion, *Love Can Move Mountains*; Michael Bolton, *How Can We be Lovers* or *Time Love and Tenderness*; Santana *Black Magic Woman*; Melissa Etheridge, *Come to My Window*; Fleetwood Mac, *Little Lies*; and Lee Ann Womack, *Ashes by Now* -- some of these you can of course dance other things to, but in my opinion make good cha