"Scott family" -- On October 17, 2009, "Extreme Makeover: Home Edition" traveled to Clarksville, Tennessee - celebrity volunteers Usher and Selena Gomez guest in the episode -- to give Trina Scott and her three daughters the good news that their problem-ridden home would be rebuilt in just seven days. Also of note for this episode, Usher lends a hand to Paige and John, working side by side to help make the new Scott family house a home; and the family gets to visit Selena Gomez on the set of "Wizards of Waverly Place." This episode of "Extreme Makeover: Home Edition" will air SUNDAY, DECEMBER 6 (8:00-9:00 p.m., ET) on ABC. (ABC/KATHERINE BOMBOY) USHER

Usher gets on the Extreme Makeover: Home Edition bus this week.  The singer donated his time to help the Scott family.  Trina Scott is a single mother of three daughters whose husband Dave was a Clarksville police officer who was killed in tragic accident.  Dave and his partner were killed almost instantly after a truck hit their police car causing it to spin out of control, hit a guardrail and catch fire.

After turning to - and receiving support - from a group called Concerns of Police Survivors, Inc. (C.O.P.S.), an organization dedicated to helping family survivors killed in the line of duty, Trina became its president.  She worked long hours for C.O.P.S. as well as a holding a full-time job to support her family.  Her home is in disrepair from termites and water damage and she’s already shelled out $20,000 to fix the damage.  So, while the Scott family vacationed in Disneyland, the EMHE team began efforts to give them a new home.

It was an eye-opener for Usher, who spent time with the children from the C.O.P.S. program and learned how quickly the kids go from surviving their own tragedies to helping others deal with their grief.

Click onto the clip provided by ABC to check out Usher’s thoughts and reactions to hoping on the Extreme Makeover: Home Edition bus.

The Scott Family episode of EMHE airs 8:00 p.m. ET/PT tonight on ABC.