Headlining British Summer Time in Hyde Park yesterday, McBusted performed in front of hundreds of fans - including Ellie, who was spotted rocking out in the crowd.
The 27-year-old singer couldn't help but take a snapshot of Dougie either, as he appeared on the live screens.
Posting her photo to her Instagram, Ellie showed her admiration for her beau, simply captioning her snap with the words: "Very proud".
Only last week, Dougie proved he is Ellie's number one fan donning a T-shirt with the 'Burn' singer's face on it as she performed at Glastonbury.
It seems the loved-up couple are each other's biggest fans judging from Ellie's photo PDA! The star proved the feeling is mutual as she too turned out to support her other half for his latest performance.
Both Ellie and Dougie confirmed their relationship back in May. Speaking to Fearne Cotton on her show Ferne and... McBusted, Dougie said "all is good" between the pair.
Likewise, Ellie said boyfriend Dougie was "very lovely", as she admitted they were dating while appearing on Alan Carr Chatty Man.
Joining Ellie in the crowd at Hyde Park's music festival was her BFF and British model Cara Delevingne. The pair, despite Cara being hidden by her hair, looked like they were having a great time as they took to their pals' shoulders to watch McBusted's set.
Not a bad way to spend your Sunday evening!
Reveal is now on Google Plus! Join us here for the latest pictures, fashion and celebrity news!