I really like potatoes. Such a versatile tuber. Is there anything you can't do with them? Boil em, mash em, stick em in a stew?
rofl. Potatoes are a part of supply in most of the world. 
It's quite a basic food staple, I would think. Lot of energy packed into a little bit of food.
I agree.  The potato was introduced to Europe in the 16th century. They are from South America. 
Ah, so every time I eat a baked potato, now I get to know that there's a rich history of colonialist exploitation involved, thank for that!
History of the potato
The potato was first domesticated in the region of modern-day southern Peru and extreme northwestern Bolivia between 8000 and 5000 BC. Cultivation of potatoes in South America may go back 10,000 years, but tubers do not preserve well in the archaeological record, making identification difficult. The earliest archaeologically verified potato tuber remains have been found at the coastal site of Ancón (central Peru), dating to 2500 BC. Aside from actual remains, the potato is also found in the Peruvian archaeological record as a design
the point of Gaga featuring in this song? I know Beyoncé fans won't like me saying this, but I can't help but think that in this instance it's a case of 'if you can't beat em, join em' [...] For someone as naturally brilliant as Beyoncé (and a better singer than Gaga and Rihanna put together), perhaps she should actually stop trying so hard and do what she does best - singing proper songs." Chris Willman from Yahoo! compared the song to Gaga