My Uncle Is A World Star summary:

Having to take care of his mother and niece, Woojin had to give up on his dream when he was young to become a singer. One day a spam-like message from “Dream Project” appeared. Then when he replied to the message, he suddenly swallowed a shooting star and under the help of an intelligent robot, Dream Project began to make Woojin’s dream come true. As the son of a mother, as the uncle of his niece, begins a luxurious life to become the best star!