The Beatles: Rock Band has a pretty good setlist. That being said, there are a few key Beatles songs that aren't in the game. This could be due to some copyright issues, the song not being very fun to play in Rock Band or a myriad of other reasons. Anyways, these are the five songs that should've been in The Beatles: Rock Band. 
Note: these songs are not only absent from the Beatles: Rock Band setlist, but there are also no plans to bring them to the game later as downloadable content. 
 

Number 5: 'She Loves You'  

Number 2: 'Help!'  

Number 1: 'Let it Be'  

The Beatles: Rock Band has a pretty good setlist. That being said, there are a few key Beatles songs that aren't in the game. This could be due to some copyright issues, the song not being very fun to play in Rock Band or a myriad of other reasons. Anyways, these are the five songs that should've been in The Beatles: Rock Band. 
Note: these songs are not only absent from the Beatles: Rock Band setlist, but there are also no plans to bring them to the game later as downloadable content. 
 

Number 5: 'She Loves You'  

Number 2: 'Help!'  

Number 1: 'Let it Be'  

Weird they didn't include those songs.

Red my babe! I actually thought Hey jude was in it until yesterday when I was listening to all of the songs in it on youtube, you can only imagine my feelings when I found out......... Let it be was going to be the last one announced I hoped. Lady madonna was a given I thought, a bit dissapointed with that one.
Where's  Eleanor Rigby and a day in the life!? Actually they might not suit the rock band enviroment but........something
Help! would of been so special to play
EDIT: Forgot that a day in the life is on sgt peppers lonely hearts club band album as DLC

" Red my babe! I actually thought Hey jude was in it until yesterday when I was listening to all of the songs in it on youtube, you can only imagine my feelings when I found out......... Let it be was going to be the last one announced I hoped. Lady madonna was a given I thought, a bit dissapointed with that one. Where's  Eleanor Rigby and a day in the life!? Actually they might not suit the rock band enviroment but........something Help! would of been so special to play  "

There are so many classic beatles songs, it's no doubt that they were going to leave out some great songs. You can't expect all the great Beatles songs to be in one game that's only $60.

"Note: these songs are not only absent from the Beatles: Rock Band setlist, but there are also no plans to bring them to the game later as downloadable content.

Would probably have chimed in, but haven't yet looked at the current song-list in depth. 
However considering that they are planning to sell albums of as DLC, I figure they pretty much have intentionally left out "must have"-songs that are spread out on a couple of albums. :-/

I don't know if I'd want to play 'Hey Jude' depending on how long they repeat the chorus at the end. But I agree with the rest... 'Help' and 'She Loves You' are two of their more famous early songs so it's weird they aren't in there. Must be holding them for DLC.

" @Hobbies: For quite some time the Rubber Soul, Sgt. Pepper's Lonely Hearts Club Band and Abbey Road albums have been announced as downloadables for the game. "

Here are my top 5: 
 
1. One After 909 - One of the first songs they played together in their beginning and redone on Let it Be.
2. Ob-La-Di, Ob-La-Da - It's so happy and fun, would trade it for Birthday.
3. Lady Madonna - Same as you, but I know why (They say "breast" in the song. Parents don't want they're kid's talking about boobs.)
4. Help! - Couldn't have said it better than you.
5. For You Blue - Catchy rythm, funky guitar solos.

As long as they're put on the Rock Band Store, I don't care. I'll but every piece of Beatles DLC.

I'm really surprised #5 and #1 are not in the game. The others I can kinda understand but those two I'm really surprised since they are well-known Beatles songs. Not that the others aren't but those two are definitely well-known.

I am almost certain most (if not all) of the tracks everyone has mentioned above will come out as DLC in the future. Cos let's be honest... everyone with that game will buy Hey Jude and Let it Be.

5 Hey Jude 
4 Let it BE

3 Eleanor Rigby

2 All you need is love

1 Help!

Hopefully they will all be DLC

" @LethalKi11ler: I'm pretty sure Strawberry Fields Forever is coming as DLC with the Sgt. Pepper's Lonely Hearts Club Band. "

2 All you need is love

 

"

Agreed with all but Let It Be.  I think that song's pretty boring.  Happiness is a Warm Gun or I'm Only Sleeping would have been appreciated, though.

Man The Beatles had so many good songs. Ballad of John and Yoko would be good, hope that comes out as DLC though considering the lyrics it can't be considered a definite.

I think "Help!" is one of the most underrated Beatles songs.  To not have it in the game is really disappointing to me, especially considering that it would be great fun to sing the harmonies.

hey jude sucks, Let It Be has a remarkable solo and therefore shoulda been added

" There are so many classic beatles songs, it's no doubt that they were going to leave out some great songs. You can't expect all the great Beatles songs to be in one game that's only $60. "

It's amazing how people neglect the fact that DLC is coming out for the game.  =  / 
 
Nonetheless, I don't understand why "Help!" wouldn't be in the game.  That's, like, a super duper classic Beatles song. 

  It really wouldn't surprise me if Harmonix kept up with monthly DLC until they completely add every song in the Beatles' song catalog.

No one mentioned either Penny Lane or Strawberry Fields Forever?

Now that I know what song Eleanor Rigby is, I also agree that it should have been included. Hey Jude and Help are a couple of my favorite Beatle songs. She Loves You and Let It Be should have also been included. Maybe I'd recognize Lady Madonna if I heard it. Oh, and dude, where are those God-forsaken strawberry fields, man?! Honestly, I'd like to see some more of their solo stuff included too. Sure, Band on the Run is Wings, but whatever, it's still Paul McCartney and it's still a totally rad song. I hope they answer all our wishes with downloadable songs in the future.

I just want the rest of the white album added

5. Magical Mystery Tour
4. She Loves You
3. Hey Jude
2. Rock 'n Roll Music
1. Help!

5. The Ballad of John and Yoko 
4. Help!
3. Strawberry Fields Forever
2. Let It Be
1. Hey Jude