Kevin Costner sent secret letters to his The Bodyguard co-star Whitney Houston after the troubled singer's aides asked him to boost her morale during the lowest times of her life.
Costner, who paid tribute to the tragic star at her funeral in February (12), admits he reached out to Houston in letter form, but still has no idea if she read his notes.
In a taped TV interview with U.S. newsman Anderson Cooper, the Dances With Wolves star says, "A couple of times there were some people that really loved Whitney and... during the last seven or eight years (they) asked me would I write her a letter... so I did; there were two occasions but I don't know if those letters were ever read."