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The Capital Late Show With Marvin Humes 10pm - 1am
20 February 2011, 19:53 | Updated: 20 February 2011, 19:57
The Saturdays were one short for their gig in Oxford on Saturday night.
Mollie was unwell and had to sit out the gig at the New Theatre, Oxford.
The girls have another eight dates on their Headlines tour, including tonight in Southend, and the girls want Mollie back as soon as possible.
Rochelle tweeted, "Missed Moll on stage last night, I hope she gets well soon xx" and Una tweeted, "Get well soon @MollieTheSats you were hugely missed on stage with us tonight love you loads xxx"
The tour closes in Belfast on Tuesday 1st March.