"Gossip Girl" Spinoff Airs May 11

Former "American Dreams" star Brittany Snow has been confirmed as the young Lily in the upcoming "Gossip Girl" spinoff which premieres May 11 on the CW with a backdoor pilot, i.e. a regular episode of the "Gossip Girl" series.

The network, which is also developing a "Melrose Place" redux for next season, has just renewed teen hits "Gossip Girl" and "90210," as well as Thursday night dramas "Smallville" and "Supernatural."

It is not clear whether the "Gossip Girl" spin-off would be paired off with the parent series on Monday night or air on a separate night. The network will announce its fall plans in May.

Krysten Ritter (as Lily's older sis) and Jericho's Shilo Fernandez (as brooding valley punk) have already been cast in the spin-off which will be a period drama set in the 1980s.