The two Bachelor stars tied the knot on Sunday, Jan. 26, at the Four Seasons Resort—The Biltmore Santa Barbara, and the entire ceremony aired live on ABC.
After the couple exchanged their vows, and the cameras stopped rolling, the husband and wife made their way to the hotel's courtyard—which was where the reception was held.
The newlyweds made their entrance to a huge applause and had their first dance to Randy Rogers Band's "One Woman."
And after that special moment, the crowd hit the dance floor!
Numerous Bachelor and Bachelorette alums attended the ceremony including Daniella McBride, Trista and Ryan Sutter, Jef Holm, Ali Fedotowsky, J.P. Rosenbaum and Ashley Herbert.
Sean's Dancing With the Stars costar Andy Dick was also on hand, along with Lisa Vanderpump, her husband, Ken Todd, daughter Pandora Vanderpump-Sabo and dog Giggy.
Toasts were given by the maid of honor and best man, as well as Catherine's parents.
A source tells E! News that the speeches were "emotional" and that the best man's speech was especially "touching and very sweet."
And after hours of dancing had ended, the husband and wife snuck up to their bridal suite.
By that point in the evening, most of the wedding attendees had headed to the hotel bar for an unofficial afterparty!
Mr. and Mrs. Lowe are due to leave for their romantic honeymoon on Monday, Jan. 27.