Detailed Instructions: In this task, you're given the title of a story consisting of five sentences, numbered 1 through 5. Your job is to arrange the sentences in order to make a story that makes complete sense and is apt for the title. Indicate your answer using the number of the sentences in order, such as '34152'.
Q: Title: Thanks Mum. Sentence 1: The video went viral and Drake's talent was spotted online. Sentence 2: He hoped that one day he would be a great singer. Sentence 3: He practiced really hard, using a hairbrush as a pretend microphone. Sentence 4: Drake loved to sing songs in the mirror. Sentence 5: A video of him was taken by his mum of him doing this.
A:
42351