My sister took one of those ancestry dna kits (we're puerto rican). Her results were 35% Portugal, 18% Spain, 15% African (Mali, Cameroon, Ghana, Senegal, Benin, Togo), 14% Native American including Andean tribe... thats 82% which makes another 18% undetermined. I thought that was real interesting.The way Latinos mixed is similar to Black Americans, but there are some stark differences.
Latinos have Native, white, and Black ancestry. Most, but not all, have Native in their ancestry. Many of those also have African in their ancestry, but not all of them. Same for white, which is the easiest to spot on the surface because most of those folks have a light complexion.
A lot of them families in Latin America are so mixed a reunion would have people of all backgrounds showing up; Fat Joe's family could very well be like that. Joe prolly got a great grandmother or grandfather back in PR or Cuba that's black as night and might have even spent time with that part of the family.
Most, but not all, Black Americans will likely find White and maybe Native in their ancestry if they look far enough back. As an example, y'all already know I'm part Native with the tribal registration and everything. On Wednesday I was talking to my moms about the family we have in Texas (her side of the family) and I told her that I googled the family name and found a shitton of white folks, and a lot of the older women looked just like her mother and aunts. Grandma was a lite-brite with white features and when I was about 3 or 4 I asked my mother why she was white and we weren't, so I always suspected something going on. Turns out there's a whoooole lotta white on that side of the family and my grandmother and her siblings were 1st cousins with a rather well known (pop culture-wise) FLOTUS from back inna day. I was shown pics of clearly White folks and some that were half Black and White but leaned more to the white side feature-wise, which explained everything.