The Girls Aloud star looked to be in full swing as she secured deals all in aid of ICAP's 21st annual Charity Day.
The event sees a host of celebrities spend their day at City brokerage ICAP and hit the phones to raise as much money as possible.
Cheryl looked chic in a white and black monochrome blouse, as she tried to help boost trading volumes in the London office.
Under the guidance of expert traders, the 30-year-old picked up the telephone and tried to negotiate lucrative business deals, and it looks like things got a little manic in the offices!
Cheryl wasn't the only celebrity keen to raise as much money as possible though, as Peter Andre, JLS and The Saturdays also popped by.
The Saturdays looked as stylish as ever as they attended the event to raise money for JLS' charity, the JLS Foundation.
Meanwhile, Peter took to Twitter to update his followers on his fundraising. He said: "This is mental! Trading today for @icapcharityday and have no idea what I'm doing!"
Peter later posed for a group photo with JLS' JB Gill, Marvin Humes, Aston Merrygold and Oritsé Williams.
A proud JB said: "Yes we did it! Thanks all @Icapcharityday had a brilliant time hanging out with @mrpeterandre making deals! x."
Also at the charity extravaganza was Holly Willoughby, Julie Walters, Strictly Come Dancing judge Craig Revel Horwood, EastEnders star Barbara Windsor, Homeland actor Damien Lewis, and The Duchess of Cornwall.
Holly looked to be in deep concentration mode as she tried to raise money for UK children's charity, Together for Short Lives.
Posting a photo of Holly securing a deal, the charity said: "Thanks to our wonderful patron @hollywills for some incredible brokering @ICAPCharityDay - your support means so much!"
The brokerage donates all of its revenues from the day to more than 200 charities worldwide.