Singing legend Dionne Warwick will perform tonight at the Palace Theater in Greensburg, Pennsylvania, her first show since the death of her cousin Whitney Houston. 

Warwick postponed a Valentine's Day concert to mourn Houston's death just days earlier.

"I thank you all for the heartfelt messages and condolence sent to console my family and me in our hour of grief," Warwick wrote on her website last week.

"We are all comforted in knowing the breadth and width that our special one WHITNEY spanned across this vast world of ours having the ability to fill with the love of beauty, spirit, and music for all to get joy from," she added.

Houston died at the age of 48 in her Beverly Hills hotel room and authorities are awaiting toxicology reports to determine the official cause of death.

Warwicks' 7-city tour includes stops in Los Angeles and Philadelphia. She will also travel to Europe with performances scheduled in Austria, France, Ireland and the United Kingdom.

Warwick is a 5-time Grammy Award winner. She won her first Grammy in 1968 for the classic "Do You Know The Way to San Jose?"

Among her greatest hits are I'll Never Fall In Love Again, Deja Vu, This Girl's in Love With You, Message To Michael, Reach Out for Me, Alfie, I Say a Little Prayer and Promises, Promises.

Tags: Whitey Houston Dionne Warwick