Altar is a house music duo of Brazilian producers and DJs Macau and VMC. Formed in 2000, the duo began receiving recognition in nightclubs in 2003 after the release of their single "Sexercise". A collaboration with vocalist Jeanie Tracy, "Party People", became their first number-one hit on the U.S. Hot Dance Club Play chart in early 2007. == See also == List of number-one dance hits (United States) List of artists who reached number one on the US Dance chart... [more on Wikipedia]