11/12/2012 02:05 pm ET

Kristen Bell Says Goodbye To 'Gossip Girl' (PHOTO)

Kristen Bell is saying goodbye to "Gossip Girl." The actress has been voicing the faceless, titular character since the show began in 2007, but hasn't appeared on the CW series ... yet. The "House of Lies" star may show up in the "Gossip Girl" series finale, but her participation has yet to be officially confirmed.

Bell took to Twitter to express her sadness that the show is coming to an end.

Kristen Bell on WhoSay

"Gossip Girl" will end with a two-hour series finale on Monday, December 17 at 8 p.m. ET on The CW.