Andy Cohen is known to be catty and selective about his Real Housewives picks, as well as guests for his interactive live show, Watch What Happens Live. But that has bitten him back a few times (Bravo lawsuits aside).

Andy Cohen apologized to Spencer Pratt and Heidi Montag during the Wednesday, Jan. 29, episode of 'SiriusXM’s Andy Cohen Live' after calling 'The Hills' alumna "trash" in 2011.

Spencer Pratt shut down the possibility that wife Heidi Montag will appear on “The Real Housewives of Beverly Hills” on Bravo — partly because of comments that Andy Cohen made about Montag, 38, over 10 years ago.

Pratt and Montag are also among over 20 homeowners from the Pacific Palisades who are suing the city of Los Angeles, along with the Los Angeles Department of Water and Power (LADWP) claiming its water system failed and turned a bad wildfire into an absolute catastrophe.

The Hills' stars Spencer Pratt and Heidi Montag have grouped with other Palisades residents to sue the city of Los Angeles after losing homes in the fire.

Fans are calling for Heidi Montag to be cast on The Real Housewives of Beverly Hills amid the revival of her music career. Her husband, Spencer Pratt, saw all the chatter online and weighed in on the possibility.

Cohen said in 2011, "I would sooner stab knives into my own eyes than see [Montag] on this network.” He apologized a few days later.