Complex sentence: Pierra made her first performance as a singer in 2013 when she performed in the house of zirian fashion show, she was later booked to go on tour with the Miss Uganda team in April 2013-June 2013 as they did their regional tours.
Split into simpler sentences: Pierra made her first performance as a singer in 2013 when she performed at the zirian fashion show. She was later booked to go on tour with the Miss Uganda team in April 2013-June 2013 as they did their regional tours.