Hailey Bieber wouldn't have considered selling Rhode for less than $1 billion

Hailey - who is married to pop star Justin Bieber - told GQ: "I always said that I would never sell the company unless it was a billion dollars.

"I was just like, it's going to be this or I am not doing it. That was my goal. But also it was not always entirely my goal to sell the company.

"I thought if the right opportunity came along and the right home for it came along, then I would definitely consider it. And I think with E.l.f., all of the boxes that I would want to check to find a home for it, they checked them and then some.

"But of course when you hear that it's a real thing and the number is real and that's a real situation being put in front of you, it's definitely like, Whoa. Okay. It is very cool."

Rhode launched at Sephora stores earlier this month, and Hailey admits that the brand's success has exceeded her own expectations.

The model said: "For me, everything with Rhode, I have my hopes for it, and then I feel like it always exceeds my hopes and expectations. Everything that has happened with this brand has far eclipsed anything I could have ever dreamed of and hoped for.

"With Sephora, I personally wasn't expecting that to be the result. Obviously, I really wanted to push it and have it be the best launch that we could have it be. I really wanted it to be the biggest launch in Sephora's history. I was hopeful that we would do that and that we could do that, but I thought because it was going to be on shelves, maybe it would take away a little bit of the desire to get it so quickly, because it would be in stock and it would be in stores. So I definitely was still surprised to see it go the way that it did."