After Jordan Clark's goal was cancelled out by Gustavo Hamer, the Hatters held their nerve from the spot and to see some of the best pictures from the evening, check out the gallery below.
37. Luton Town celebrate reaching the Premier League!
The Hatters run towards their fans after winning the penalty shoot-out! Photo: Alex Pantling
38. Luton Town celebrate reaching the Premier League!
Town supporters don their wigs for the big day Photo: Alex Pantling
39. Luton Town celebrate reaching the Premier League!
Town players take a breather from celebrating after winning promotion Photo: Alex Pantling
40. Luton Town celebrate reaching the Premier League!
Luton's backroom staff line-up for the camera Photo: Liam Smith