The ex of Travis Barker was seen in the California desert ... Shanna turned 50-years-old on March 28. Shanna has been a model for over 30 years and was on a reality TV show, Meet The Barkers ...

Made in Chelsea viewers were introduced to newcomer Livvy Barker during the season 29 premiere ... She currently works part-time at a Pilates studio and models, having signed with Muse Agency.