Jennie Garth and Tori Spelling Jennie Garth and Tori Spelling

It was only a matter of time! ABC Family's Mystery Girls is staging its first official Beverly Hills, 90210 reunion.

See why Tori Spelling says reuniting with Jennie Garth for Mystery Girlswas a "no-brainer"

The upcoming comedy, which premieres June 25 at 8:30/7:30c, stars Tori Spelling and Jennie Garth as former co-stars from a '90s detective show who are brought back together by a real-life mystery.

So who's the first friend they called on to stop by their series? Spelling shared the news on Twitter Tuesday:

Joe E. Tata played everyone's favorite boss and surrogate father, Peach Pit owner Nat Bussichio. Nat was a fixture throughout the Fox show's 10-season run, and he even walked Donna (Spelling) down the aisle in the series finale.

More TV shows that should reunite

Which other Beverly Hills, 90210 alums should guest-star on Mystery Girls?

Get a behind-the-scenes look at the series below:

Mystery Girls behind-the-scenes look