Complex sentence: The "Fab 5" were five up-and-coming hip-hop artists that the channel placed a heavy emphasis on during the entire summer; these artists were Juelz Santana, Da Back Wudz, Young Jeezy, Tony Yayo, and Paul Wall.
Split into simpler sentences: The "Fab 5" were five up-and-coming hip-hop artists that the channel placed a heavy emphasis on during the entire summer. They were Juelz Santana, Da Back Wudz, Young Jeezy, Tony Yayo, and Paul Wall.