Jay Sean and his pregnant wife Thara Prashad are expecting their first child together. Credit: Courtesy of Jay Sean

Which will it be, Jay Sean? The smooth R&B crooner shared a precious photo collage of himself with wife Thara Natalie via Instagram on Wednesday, Sept. 18 -- including a sonogram of the couple's unborn child, which the Sean called a "Lil Sheezy …or Sheezette!"

"Well here it is! The new addition to the fam!" he captioned the photo, which featured a shot of a pregnant Natalie, as well as a photo of the two of them together, in addition to the sonogram. "As some of you may no know, me and the wifey are expecting a Lil Sheezy … or Sheezette! Here's the first pic of the little one!"

The "Mars" singer thanked fans for their well wishes and joked that he hoped he got his little bundle of joy's "good side."

Sean, 32, has been largely private about his personal life, though he was initially linked to model and R&B singer Natalie since 2010. The pair collaborated on the song "Murder" off Natalie's self-titled debut album in 2007, and then again on Sean's second album, My Own Way, in 2008.