My moms getting engaged!

So today is my moms boyfriends birthday and there going to pink pony tonight with a bunch of friends. Well my mom just thinks that shes just going there for karaoke night and to celebrate his birthday. But what she doesn't know is that her boyfriend is going to propose to her tonight when there there. He asked me the other night if it was alright that he asked my mom of course I said yes cause my mom is happy and so I should be happy for her. Well he told me how he was gonna ask her and it is the cutest way. Hes going to sing Marry me by bruno mars there since its karaoke night. Than at the end he's going to ask her to marry him. And last but not least he got her a ring that is custom made because one of his friends has a jewelry shop and they only get the perfect diamonds that has literally nothing wrong with them.