Jake Owen is ready to make it official. The country singer announced that he is engaged to longtime girlfriend Erica Hartlein. "5 years ago we went and got our first Christmas Tree together....at this same spot. This year, I asked her if she'd like to get Christmas Trees every year for the rest of our lives,” wrote Owen on Instagram. "Our little Paris was there to witness the complete surprise," Jake continued. "So much of a surprise, Erica didn't have her nails done..(yes, I now know that's big deal I guess)." What do you think is the perfect proposal?