Question: Numbers is the second studio album by American hip hop duo MellowHype, the album also contains appearances from various Odd Future members, Odd Future Wolf Gang Kill Them All, normally shortened to Odd Future and abbreviated to OFWGKTA (stylized OFWGK†Δ with an upside down cross), is an American hip hop collective formed in which city, in 2006-07?
Sentence (from "Numbers (MellowHype album)"): The album also contains appearances from Odd Future members Frank Ocean, Mike G and Earl Sweatshirt.
Relevant evidence: Yes