Girl next door Sonakshi Sinha is all set to transform into the hottest pin up girl with her first item number titled 'Chikni Kamar Pe Teri' for her forthcoming film 'Rowdy Rathore'. Sonakshi will be seen gyrating on the number with her co-star Akshay Kumar. Sonakshi has been rehearsing her sexy moves, for the larger than life item number, which will be shot after a few days in Hampi. The song will be choreographed by Vishnu with valuable inputs from her director and ace choreographer Prabhudeva. 'Chikni Kamar Pe Teri' is a fast-paced masaledaar song composed by duo Sajid-Wajid.