"Chamma Chamma", recreated for the film "Fraud Saiyyan"–original composition from the film "China Gate" (1998)–was considered "memorable", while "Coca Cola Tu" from "Luka Chuppi" and "Hauli Hauli" from "De De Pyaar De" were acknowledged by some critics for giving the songs "a new flavor" though other critics disapproved her latest trend of "annoying" association in the remade song. The year marks her first collaboration with Vishal Mishra and Vishal-Shekhar, where she performed the female version of "Ki Honda Pyaar" from "Jabariya Jodi" for the former and "The Hook Up Song" for the latter, which was well received by critics; Sen from "The Times of India" wrote: "The zing in Neha Kakkar’s sultry voice adds to the flirty feel of the upbeat track". The trio of Kakkar, Bagchi and the dancer Nora Fatehi re-united for two other chart-buster songs, "O Saki Saki" from "Batla House" and "Ek Toh Kum Zindagani" from "Marjaavaan". The former being a remake of "Musafir"'s "Saaki", originally performed by Sukhwinder Singh and Sunidhi Chauhan was criticised for the lack of "power" compared to the original version. During the year, Kakkar lent her voice for the foot-tapping club number "Dheeme Dheeme", composed by Bagchi and the romantic love song "Tu Hi Yaar Mera" composed by Rochak Kohli, in which Tuteja from Bollywood Hungama appraised her "different avatar" in the latter. Kakkar possesses a contralto vocal range and has the ability to reach E5 note. Her voice has been described several times in the media as "distinct", "unique", "chirpy", "seductive" and "partially nasal". She did not take any formal vocal training. In an interview with "The Indian Express" she said, "The fact that I am not formally trained never really bothered me. There were times I knew it could have been a brownie point, had I been trained but it never pulled me back". Believing that she needs to be distinctive to be noticed from the crowd of competition, she keeps "practicing by learning to sing songs that catch her fancy" since her voice is her "USP".