Complex sentence: Wentz met with designer, Darren Romanelli, to discuss a creative collaboration for Fall Out Boy's musical tour, and they decided to base their concept on the song, "Tiffany Blews".
Split into simpler sentences: Wentz met with designer, Darren Romanelli, to discuss a creative collaboration for Fall Out Boy's musical tour. They decided to base their concept on the song, "Tiffany Blews".