The popstars couldn't contain their excitement on Twitter as they sat in a box waiting for Queen B to make an entrance at London's O2 Arena.
Vanessa said earlier in the day: "I can't even deal with how excited I am to watch Beyoncé tonight."
Making the most of the night, Rochelle and Vanessa enjoyed a lavish meal with a group of friends and were practising their dance moves beforehand!
The group were photographed doing Beyoncé's hand gesture, as made famous by her 'Single Ladies' track.
Mum-of-one Rochelle glammed up for the night in a sparkling beige-coloured jumpsuit. Meanwhile, Vanessa looked chic in a black lace mini dress.
The duo even splashed out on some merchandise and were pictured wearing the 'surfboard' slogan jumper, which Lily Allen also wore at Beyoncé's concert earlier this week.
Standing in front of a large poster of the 'Drunk In Love' singer, Rochelle and Vanessa struck a pose and pointed towards their musical idol.
Like all good concerts, Rochelle was still reliving the night's events this morning!
Husband Marvin tweeted: "My wife has woken up singing @Beyonce songs to me.. She is still so hyped from last night #BeyonceFanGirl."
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Watch The Saturdays' music video for 'Not Giving Up' below: