Why did the Chipmunks look different in the 4th movie?

I’ve been thinking, if there was a 5th movie what would happen and what would the story be about. What do you think?

I’m talking about the ones that aired in another country first. Do you know any website where I can watch them?

In i will survive how did Derek cheat?

I think that no because i think she should've accepted he likes Alvin and the Chipmunks

Minor detail, but I still am curious.

Was Brittany's shirt in the third film with sleeves? I made a story theory on FanFiction that it is long-sleeve with holes underneath the jacket.

I was looking forward to that episode

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So im confused did they leave after they were born or what???????

I think I am Alvin because he is my favourite and I enjoy the spotlight. My sister would probably be Eleanor Because she is very hyper and athletic. My cousin is Simon because he is smart. and my friend Serena is Brittany (but a little bit of Jeanette) and my baby cousin is Theodore. Please note: I am reefering to the chipmunks/chipettes from ALVINNN!!! and the Chipmunks.

I think many people underestimate them, they’re really good characters and are more than just the Chipmunks’s love interests and female counterparts, my favorite of the Chipettes is Eleanor, because she is shown to be more assertive than Theodore(at least in the 80s and 2015 series) and they have chemistry together.

But I’ve seen some people(mostly SJWs/feminists like Lindsey Ellis) accusing them of being nothing but fan service, i think it’s very unfair, especially considering the fact that Janice Karman, a woman, was the one who had the idea of creating them because she not only wanted three female characters to do covers with the chipmunks, but also because they wanted to talk about girls’s issues and to attract a female audience.

But this is just my opinion, feel free to disagree with me.

Since Alvin and the Chipmunks (2015 TV Series) is losing so much viewers, do you guys think the show might be cancelled soon?

I that Clyde Crashcup, Mrs. Frumpington and the other 60s characters from The Alvin Show should appear in ALVINNN!!! and The Chipmunks because they (except for Clyde Crashcup) haven't appear since the 60s. I also think would interesting if later seasons combined elements from the 60s and 80s series. Not to mention, it would be very interesting if The Chipettes met the 60s characters.