Mark Wallengren
Mark Wallengren has been the host of KOST's Morning Show for over 20 years. He's received a star on the Hollywood Walk Of Fame and began his radio career in Idaho in the 1980s.
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Kristin Cruz
Kristin is a 4th generation LA native, proud Latina, and Mommy Blogger. Married to Fireman Matt, her high school sweetheart, she is the mommy of Isabel, 3, and Cruz, 4 months. Obessed foodies, Kristin & Matt will go to any length to find the best BBQ, the best cheesecake, anything! Matt runs companychow.com, a recipe site dedicated to the recipes produly passed on by firemen in America's firehouses. Kristin is a regular guest on HLN and you can follow her latest exploits here on her KOST Mommy Blog.
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RODRIGO
Rodrigo Hernandez first started in radio as a board operator for KOST 103.5 FM and in no time at all was recognized for his energetic sense of humor, landing him the role of assistant producer. Rodrigo eventually became the sole producer of the KOST Morning Show in February of 2000. From celebrity interviews in Beverly Hills to exploring Mayan ruins, he has been through every adventure the morning show has thrown at him! Rodrigo loves to go to the movies and travel. His guilty pleasure is to watch professional wrestling: "I think that's why I'm single.
KLAUDIA 
Klaudia Aresti was born in Guatemala and moved to LA with her family when she was 3. A proud Bruin (go UCLA!), Klaudia is a big fan of the City Of Angels and loves to try new things around town. After an internship with radio star Charlie Tuna, Klaudia moved to the KOST Morning Show four years ago. She lives in Los Feliz and loves to travel and spend time with family, friends and her boyfriend.
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Carpenters-Merry Christmas Darling
Today, a lyric written as a love poem during World War II becomes one of the biggest Christmas hits of the 70's...we'll connect the dots from Wisconsin...to Long Beach, California on Mark and Kristin's Behind the Song! 
Carpenters
