July 3 (UPI) -- Celebrity couple Carlos PenaVega and Alex PenaVega are giving fans a first glimpse of their newborn son.
The 29-year-old actor and 30-year-old actress took to Instagram Tuesday after welcoming their second child, Kingston James, on Sunday.
Carlos and Alexa are also parents to 2-year-old son Ocean King. Alexa shared a family photo featuring herself, Carlos, Ocean and Kingston.
"It's official! We are now a family of 4!" she captioned the post.
Carlos posted the same picture on his own account.
"#KingstonJamesPenaVega," he added.
"Ahhh congratulations!!! Welcome to the world Kingston!" Sparks wrote.
"So crazy man - huge love to you and the big fam!!!" Maslow added.
"Beyond blessed and excited to continue growing this family!!! Get ready for a whole new set of adventures!!!" Alexa said at the time.
Carlos is known for playing Carlos Garcia in the Nickelodeon series Big Time Rush, while Alexa portrayed Carmen Cortez in the Spy Kids movies. The couple married in January 2014.