This is one of the STRANGEST-shaped tomatoes I've ever seen, and it grew on MY tomato plant! It's supposed to be a "Big Bertha" variety, but when the weather started to finally cool in October (down to the 90's), I gave each of the struggling veggie plants a small amount of strong fertilizer when this tomato was round and about the size of a cherry tomato. The result not only made this tomato go crazy but the next one pictured, too.