Katie Price is set to return to the spotlight and relaunch her singing career at the Mighty Hoopla festival this weekend.The 43 year old, who recently offered her terminally ill mum Amy one of her lungs, will be performing on Saturday 4 September at London's Brockwell Park with Love Of Huns & Jayde Adams.The former glamour model is hoping to bring life back into her pop career after taking a backseat on that side of her hectic life raising five children.TV personality Katie, who previously sang