Following his sold-out tour in January 2014 the singer is back with his The Story So Far Tour.
He had the fastest-selling single of any winner of The X Factor with Impossible, which went to Number 1 in the UK charts.
Indigo at The O2, May 28, tickets from £23.20
The hugely successful 90s band will perform at the O2 in ten gigs this June.
Mark Owen, Gary Barlow and Howard Donald will be back on the road for the first time since the band’s record-breaking tour Progress Live.
Rising star Ella Henderson, who recently celebrated her debut single Ghost, will be supporting the band throughout the tour.
The O2, June 4-6, 8-9, 11-13, 15 and 19, tickets from £65.90
Three others coming up at The O2 in June
The multi-platinum-selling singer will embark on a worldwide tour in support of her album My Everything at The O2 in June.
Her first headline show will be at the North Greenwich venue.
The O2, June 1, tickets from £35
Mac Sabbath and Elvana
These Black Sabbath and Nirvana tribute bands both provide a twist on your regular mimicry group.
Mac Sabbath combines McDonald’s and Black Sabbath - and why not? While Elavan is the world’s finest Elvis front Nirvana tribute.
Brooklyn Bowl, June 11, £10
Following a hugely successful 2014 - which saw more than a million sales of his single All of Me and a worldwide tour - the soulful singer will play a one-night-only gig at The O2.
He will be supported by Jess Glynne - who featured on Clean Bandit's single Rather Be and Route 94's My Love".
The O2, June 25, tickets from £42