Source: <a href=https://www.google.com/url?rct=j&sa=t&url=http://www.dailybulletin.com/arts-and-entertainment/20140905/calvin-harris-tiesto-set-to-drop-beats-at-pomona-and-san-bernardino-festivals&ct=ga&cd=CAIyGmU0ODdhNGI2MDM0M2U0ZTE6Y29tOmVuOlVT&usg=AFQjCNGW98KaKGD4ZLinJMoDZxFE0DPcvA class="colorbox" title="Calvin Harris, Tiesto set to drop beats at Pomona and San Bernardino festivals” >Tiesto