Lauren Alaina celebrated her recent chart-topping hit, “Road Less Traveled,” with a Number-One-sie party at The Sutler in Nashville. Known for her love of wearing onesies, she wore a customized, blue sparkly zippered onesie and provided onesies for all of the guests at the party, including Frankenstein, hot dogs, astronauts and many other models.

She co-wrote the song with Jesse Frasure and Meghan Trainor, who flew in to surprise her in a sleek black onesie.

Lauren says she’s celebrated her first No. 1 in a lot of ways, but she hasn’t splurged on anything big yet, except for purchasing a goat onesie online.

Lauren, who will hit the road with Luke Bryan in a couple of weeks, has hit the airwaves with her new single, “Doin’ Fine.”