Pregnant Kelis showed off her burgeoning baby bump in a sheer shirt and jeans while performing on the Main Stage at Blackheath Common on September 13, 2015 in London, England.

Earlier this month, the Milkshake singer revealed that she is expecting her second child with her rumored husband Michael Mora. “I’m pregnant,” She tells Us Weekly. “I’m so excited! It’s really amazing.”

“My son is excited to be a brother,” adds  the celebrity mom. “With my cookbook coming out and a new baby, it’s a really exciting time for us.”

Knight is Kelis’ son with recording artist Nas.