Guru Randhawa, who composed and sang for films like "Hindi Medium", "Tumhari Sulu", "Dil Juunglee", "Sonu Ke Titu Ki Sweety" and "Blackmail", and is gearing up for a nine-city tour followed by "Da-Bangg" tour in the US and Canada, says Bollywood has added a lot to his career as he feels on top of the world when people from all around the world dance to his tracks.