Taking to Instagram after the grand gesture, sister, Kim Kardashian gave us a look at the gorgeous ring Barker proposed with.
It was only earlier this month when the pair caused speculation after the Blink-182 singer shared a photo of a wedding dress and a tux. He uploaded the post without a caption, leaving many fans wondering if they had already tied the knot.
The two were confirmed to be dating in January this year after a source close to the pair told US Weekly "They have been close friends for years and have been dating for a couple of months. Travis is very smitten with Kourtney and has been for a while."
While the match might not have been predicted by many, the pair have long moved within the same social circles and lived in the same Calabasas gated community.
Kourtney has three children with her ex-partner Scott Disick, whom she separated from in 2015.
Barker has two children from a previous relationship.