“I’ve changed the set slightly and bunged a couple of songs in to give it a bit of life and a bit of different, especially for those who have previously come along to an arena show.
When it’s outdoors, people drink and have a good time.
Olly teased fans yesterday on Twitter: "I can now reveal my next single is UNPREDICTABLE....
A duet with the awesome @louisa #unpredictable"The duet follows news that Louisa will be supporting her fellow X Factor alum - who in fact hosted the show when she was a contestant - on tour this summer.
It's the latest single to be taken from Olly's fourth number one album, 24HRS, which was released last year.
Louisa provides vocals on a new version of the song which is out for download now.
And skipping onto the stage in black hotpants was fellow X Factor contestant, 19-year-old Louisa Johnson.
"I think if you put a barrier in front of yourself and say: 'Oh because I'm famous I can't do that' then you're going to just sit at home and do nothing."That being said, Olly admits the fact he is recognised means it can be hard to enjoy a date in public."It can be difficult just taking a girl for a general dinner but I think meeting people is quite easy," he continued.His trademark cheeky grin and larger-than-life presence brought the audience to their feet as he burst into You Don’t Know Love. And the regal setting did not go without a mention.“I feel like Jon Snow in Game of Thrones, with my Castle behind me, you are my army,” he joked. With flawless energy, a party was what he gave with unrelenting infectious enthusiasm throughout.“ But winter is not here.”And The sun continued to shine as he dominated the stage, dancing, jumping and engaging fans across the stadium. And things were looking up for one man in the audience when admitting he was still looking for love Olly sang ballad I Need You Now to him.Backed by an impressive 11-piece band, the heartthrob showed his soft side by singing to kids in the front row.