Complex sentence: On 29 March 2013 they released the single "Mozart's House" the song has peaked to number 17 on the UK Singles Chart, making it their first Top 20 single in the UK.
Split into simpler sentences: On 29 March 2013 they released the single "Mozart's House". The song peaked at number 17 on the UK Singles Chart, making it their first Top 20 single in the UK.