Colleen Marie D'Agostino is an American musician and singer-songwriter from Simi Valley , California . In 2005 , while attending San Diego State University she formed The Material . They released their first EP entitled '' Tomorrow '' on September 1 , 2007 . After six years recording and touring with The Material , Colleen started an electropop side project called With Beating Hearts . The first With Beating Hearts EP was released on October 11 , 2011 . In 2013 , Colleen was featured on a song called " Drop the Poptart " on Canadian producer deadmau5 's Soundcloud . She was also the featured vocalist on " Seeya " , the second single from deadmau5 's Grammy - and Juno-nominated studio album '' while ( 1 < 2 ) '' . " Seeya " has since gone platinum in Canada , after Colleen and deadmau5 performed the song on the 2015 Juno Awards on March 15 , 2015 in Hamilton , Ontario , Canada
Juno
Juno Awards of 2015
Colleen D'Agostino