Dorough, along with AJ McLean, Brian Littrell, Nick Carter, Kevin Richardson, started the Backstreet Boys in 1993. They were then booked to perform at many venues such as high schools and shopping malls and eventually managed to sign a contract with Jive Records in 1994. They slowly became popular in European countries, starting with Germany, and embarked on a tour in support of their debut album. The album slowly climbed up to the top ten slots in most countries and was on its way to selling more than 8 million copies.