1990s and early 2000s teen pop artists eventually entered hiatuses and semi-retirements (*NSYNC, Dream, Destiny's Child) or changed their musical style, including the Backstreet Boys, Britney Spears, Christina Aguilera, Jessica Simpson, Mandy Moore, 3LW and Aaron Carter. Many teen artists starting incorporating genres such as pop rock, contemporary R&B and hip-hop. B2K, a hip hop/pop/R&B group, consisting of four teenage black boys, so they were considered a boy band and was popular across the world, though they were only active from 2000 to 2004. Their style of music was very different than other teenage artists, sounding more mature than the typical boy band, though the members were all in their mid-teenage years as well.