I have to create a code of lists of lists where it returns "True" exactly when there exists(at least 1) and favorite band in all of the lists(may be > 3). I'm very new to programming and I am very lost on what to do. I have tried something, but it's not completely filled in. I need some help!

```
favoriteBandLists = [
    ["Metallica","Linkin Park","Alice In Chains","Nirvana", "Soundgarden"],
    ["Pink Floyd","Alice In Chains","Soundgarden","Metallica","Linkin Park"],
    ["Audioslave","Offspring","Soundgarden","Linkin Park","The Beatles"]]

```

My Code: 

```
def commonFavoriteBand(list):
    foundCounterExampleyet = False
    for i in range(()):
        if(()):
            foundCounterExampleYet = True
    return not(foundCounterExampleYet)

print (commonFavoriteBand())

def commonFavoriteBandA():
    foundExampleYet = False
    for value in values:
        if():
            foundExampleYet = True

return foundExampleYet

```