Beyonce: House of Dereon Fashion Show With Mom Tina!

Beyonce smiles while walking down the runway at the end of the House of Dereon Spring/Summer 2012 show during London Fashion Week on Saturday (September 17) in London, England.

The 30-year-old pregnant entertainer held hands with her mom Tina, who launched the line with Bey back in 2004.

PHOTOS: Check out the latest pics of Beyonce

Earlier in the week, Beyonce was in New York City where she hit up several Mercedes-Benz Fashion Week events with younger sis Solange, including the Vera Wang and J. Crew shows.

Beyonce also attended the men’s final of the U.S. Open with hubby Jay-Z.

FYI: Beyonce is wearing Ruthie Davis “Future” pumps.