Country Star Jo Dee Messina Engaged
06/22/2007 AT 02:25 PM EDT
"This is such a happy time for us," the couple said in a joint statement.
"And we are so appreciative for each other and for our families, friends and fans that have sent us cards and emails. Thank you, from the bottom of our hearts."
The couple plan to marry in the fall.
Messina, 37, is a Grammy-nominated vocalist whose albums – including Burn, Jo Dee Messina: Greatest Hits and Delicious Surprise – have sold more than 5 million copies.
Deffenbaugh owns and operates Deffenblaster Enterprises, which builds custom road cases and audio equipment, Messina's rep says.