Complex sentence: Released on March 15, Sammy was required to do a two-week press junket behind the album, which included The Late Show with David Letterman and appeared on CNN's Showbiz Today.
Split into simpler sentences: Released on March 15, Sammy was required to do a two-week press junket behind the album. He did the Late Show with David Letterman and appeared on CNN's Showbiz Today.