After 12 years, you would think that LL Cool J, Chris O'Donnell and their "NCIS: Los Angeles" characters would be tired of each other by now. However, the pair tells ET Canada's Carlos Bustamante their bromance that started in 2009 is still going strong. Tune in to new episodes of "NCIS: Los Angeles" Sundays at 9 pm. ET/PT on Global.
