Leicester-born Sam, who supported Beyonce on the Birmingham leg of her UK tour on Monday night, is among the latest acts to be announced for the two-day festival at the home of Leicester Tigers.
She will be joined at the Leicester Music Festival by girl group The Saturdays, MOBO Award-winner Labrinth, singer-songwriter Katy B and street dance troupe Diversity, who have also been confirmed today.
More headline acts are still to be announced and fans can click here for the Tigers YouTube channel for and a taste of the Leicester Music Festival.
Professor Green, Union J, Soul II Soul, Billy Ocean, Aswad, The Real Thing and Stereo Nation have already been confirmed on the bill.
The Leicester Music Festival takes place on Friday, July 25 and Saturday, July 26 and a capacity of 22,000 festival-goers will be permitted on each day.
Confirmed line-up so far:
Friday, July 25, 2014: Professor Green, Katy B, Soul II Soul, Billy Ocean, Aswad, Diversity
Saturday, July 26, 2014: Labrinth, Union J, The Saturdays, Diversity, Sam Bailey, The Real Thing, Stereo Nation
Tickets are on sale from the Tigers' ticket office at Welford Road, call 0844 856 1880 (option 2) and online from Friday morning priced from £45 per person per day. Tigers supporters will be able to purchase from us without having to pay a booking fee for each ticket, just our usual postage fee.