Complex sentence: It was originally released on 11 March 2011 as the lead single from his third studio album "Wasn't Expecting That" (2011) and peaked at number 3 on the Irish Singles Chart.
Split into simpler sentences: It was originally released on 11 March 2011 as the lead single from his third studio album "Wasn't Expecting That". It peaked at number 3 on the Irish Singles Chart.