News Meet Idols SA Season 13’s Gabi Du Plessis By Mytvnews - September 3, 2017 0 Share on Facebook Tweet on Twitter Gabi Du Plessis is the contestant on Idols SA season 13. Check out things you need to know about Gabi Du Plessis below! – Gabi Du Plessis was born in Kenilworth, Cape Town. – She is 16 years old. – Gabi is the second youngest contestant.