Martina McBride has teamed up with GAC to count down the Top 50 Videos of 2009 over five consecutive nights, starting tonight.  John Rich, Chris Young, Jack Ingram and Trace Adkins  join Martina for visits this week, while Miranda Lambert and Kellie Pickler phone in from the road to help introduce their videos. Martina prepares for the big countdown with some endurance pointers from Tennessee Titans head coach Jeff Fisher, and Carrie Underwood, Darius Rucker, Keith Urban And Reba all send out special taped messages to their fans. 

A few artists show up more than once in the countdown. Those making three appearances include  Taylor Swift, Alan Jackson and Brooks and Dunn.  Dolly Parton, Chris Young and Miley Cyurs also make their debuts as GAC counts down the Top 50 Videos of 2009, starting tonight at 7:00 CST. The number-one video will be revealed on the final installment, airing this Friday, January 1st.