Complex sentence: In 2006, on his 18th birthday, he signed with Epic Records, ending an industry-wide bidding war and has since shared the stage with acts such as The Goo Goo Dolls, Dashboard Confessional, The Plain White T's and Gym Class Heroes.
Split into simpler sentences: In 2006, on his 18th birthday, Day signed with Epic Records, ending an industry-wide bidding war. He has since shared the stage with acts such as The Goo Goo Dolls, Dashboard Confessional, The Plain White T's and Gym Class Heroes.