Sean Lowe Celebrates Birthday at 1 OAK Nightclub with Fiancee Catherine Giudici

Sean Lowe Celebrates Birthday at 1OAK Nightclub in Las Vegas
Former Bachelor star Sean Lowe celebrated his birthday at 1 OAK Nightclub in Las Vegas with fiancee Catherine Giudici (Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com). 

Sean Lowe celebrates Birthday at 1OAK Nightclub with fiancee Catherine Giudici
Sean Lowe celebrates Birthday at 1 OAK Nightclub with fiancee Catherine Giudici

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.

Also at the club, was actress Briana Evigan and her dad Greg Evigan. Briana posed with Sean and Catherine for a photo.

Lowe and Giudici are tying the knot in a live TV special on ABC on Jan. 26, 2014.

Sean Lowe celebrates Birthday at 1OAK Nightclub with fiancee Catherine Giudici
Sean Lowe celebrates Birthday at 1 OAK Nightclub with fiancee Catherine Giudici

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.

Briana Evigan with Sean Lowe and fiancee Catherine Giudici at 1OAK Nightclub in Las Vegas
Briana Evigan with Sean Lowe and fiancee Catherine Giudici at 1 OAK Nightclub in Las Vegas

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.

Briana Evigan and her dad Greg Evigan at 1OAK Nightclub in Las Vegsa
Briana Evigan and her dad Greg Evigan at 1 OAK Nightclub in Las Vegsa

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.

Sean Lowe celebrates Birthday at 1OAK Nightclub with fiancee Catherine Giudici
Sean Lowe celebrates Birthday at 1 OAK Nightclub with fiancee Catherine Giudici

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.

Sean Lowe on red carpet at OAK Nightclub
Sean Lowe on red carpet at 1 OAK Nightclub

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.

Briana Evigan with Sean Lowe and fiancee Catherine Giudici at 1OAK Nightclub in Las Vegas
Briana Evigan on red carpet at 1 OAK Nightclub in Las Vegas

Photo credit: Bryan Steffy / WireImage / www.BryanSteffyPhoto.com.