Kevin and Danielle Jonas Reveal the Sex of Their Baby

The testosterone-filled Jonas family is about to get a heavy dose of estrogen.

Oldest brother Kevin and his wife of three years, Danielle, both 25, have revealed that they're having a girl! That's right, Nick and Joe will be uncles of a little lady later this year!

The "Married to Jonas" couple announced the sex of the baby with an adorable altered ultrasound photo on Instagram.

"It's a girl !!! Iam so happy I been able to share everything & not have secrets it's been so nice," Danielle wrote onTwitter. "Thank u for all the tweets of excitement!"

When the couple announced their new addition last month, Kevin told E! that he's "excited and nervous" about what's to come.

"It's been the most exciting thing in my life so far," he added.

(Instagram)

The former Disney star met his bride when his family was vacationing in the Bahamas in 2007.