Complex sentence: On 19 March 2013, Simple Minds announced a second UK leg to the "Greatest Hits +" Live Tour including 4 arena shows to be held in Glasgow, Manchester, Birmingham and London, with guests Ultravox at all 4 concerts.
Split into simpler sentences: On 19 March 2013, Simple Minds announced a second UK leg to the "Greatest Hits +" Live Tour including 4 arena dates. These concerts will be held in Glasgow, Manchester, Birmingham and London, with guests Ultravox at all 4 concerts.