We spied the former TOWIE star hanging out with pals at the uber exclusive Virgin Media Louder Lounge, which also paid host to stars such as Rochelle Humes, Laura Whitmore and Pixie Lott over the weekend.
After sampling one of the gorgeous ice cream treats on offer at the Sorbitium Ices van, the Heart FM DJ headed out to the main festival field at Hylands Park, Chelmsford. While the rest of us had to trudge from our camping grounds to the main stage, lucky Mark was whizzed there in a little buggy. Ah, the benefits of being a celebrity!
Mark - who kept a low profile in a baseball hat - seemed to be having an a-mazing time. Every time we saw him he was smiling, laughing and chatting away - even when the heavens opened at one stage and soaked EVERYONE!
He was at the festival without wife Michelle Keegan, who is a regular at the Weston Park, Staffordshire leg of the festival. This time, however, she missed out as she was visiting friends... which meant when the rain started, she was tucked up all dry inside!
While her other half partied in the rain, actress Michelle tweeted: "When it's throwing down with rain outside and you're in bed all cosy!!!!"
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