(nme.com) - Mariah Carey is set to meet fans and sign copies of her latest single, 'Touch My Body', in the Selfridges department store in London on April 1.She will be arriving through the front entrance of the store, situated on Oxford Street in the centre of the capital, at 4.55pm (GMT).According to a statement issued to NME.COM, Carey will be arriving in 'spectacular fashion'. The singer is set to release a new album, 'E=MC2', on April 14.