And perhaps the most important one – Delta's!
Speaking to WHO, Foley, 39 confirmed he wasn't surprised when the blonde pop star turned her chair during his performance of Footloose.
"She’s great! I’ve actually worked with Delta about four years ago, we did a big show at the convention centre in Sydney, I'd met her briefly on a couple of occasions, but I hadn’t seen her for a very long time," she tells WHO.
"Deltas lovely, she’s very truthful, she’s very upfront, she’s just real. I love real people, I’m not completely into fake or two-faced people and I think she generates a lot for honesty and truth."
And Delta isn't the only Coach Foley has been acquainted with in the past, "I lived next door to Guy [Sebastian] back when he was filming Australian Idol."
What a small world! Do you think this will give Foley the upper hand on The Voice or has he got to work twice as hard? Let us know on Facebook.