Kuch toh hua hain sung by Tiwari and Tulsi Kumar is a finely composed soft-romantic number. Both the singers have crooned their parts perfectly and their vocals gel very well with Ajay Devgn and Kareena Kapoor Khan's chemistry in the video. The signature tune is nice and there is dominant use of electronic beats, apart from a few dholak beats.
The lyrics, penned by Sandeep Nail and Abhendra Kumar Upadhyay, are easy and hummable.
Tiwari performs extremely well in a few portions where he touches the high-pitch with ease. Hear Kuch toh hua hai on repeat a few times and we are sure you will start loving it!