Every child in Mumbai city seems to be humming and dancing to one tune... that of Mahalakshmi Iyer's song Ta Ra Ma & Pa from Yash Raj productions TA RA RUM PUM. Mahalakshmi's rendition of this perky animated song not just gets heartthrob Saif and the bubbly Rani to boogie along with their on screen kids but does get Ma bear, Pa bear and baby bears to dance to her jingle too. This young multitalented singer seems to have become the new hot favorite amongst the Yash Raj team from having sung chart busters in Saalam Namaste, Bunty aur Babli, Fanaa, Dhoom 2 and now this. Is she their lucky mascot???