Pregnant Shakira rocked Azerbaijan on October 14, 2012 with a concert at Baku's Crystal Hall. Credit: Trend/Splash News

Shakira rocked out with her baby bump out!

The mom-to-be proudly showed off her growing belly on stage Saturday night during her show in Baku, Azerbaijan.

The "Hips Don't Lie" singer, 35, tweeted before her concert, "In a few minutes it will be our baby's first time on stage and precisely at a football event! Magic Shak." Once on stage, Shakira flaunted her tummy in a tight black dress, black leather leggings and tall wedge boots.

Shakira is expecting her first child, a baby boy, with boyfriend Gerard Pique. Shakira and Pique, 25, an FC Barcelona soccer star, have been dating for more than a year and a half. "Gerard and I are very happy awaiting the arrival of our first baby!" she wrote on her Facebook page on Sept. 19. 

On Oct. 6, the pregnant singer joked on Twitter, "Now I don't have a six pack, only one pack!"

After her first show Saturday since announcing her pregnancy, Shakira tweeted, "I felt awesome on stage! We really enjoyed tonight! Shak Baku."