Green Day: Rock Band

The four songs that you need to GS are

-Give Me Novacaine/She's a Rebel
-Letterbomb
-Homecoming
-Are We the Waiting/St. Jimmy

These songs must be played on expert if you are skilled in any particular instruments try playing them there if not find a friend and try Gold starring them as a group. A fair warning the gold star cutoffs are VERY strict and require near perfect playing and/or perfect usage of Overdrive.

Another fair warning, these songs are not a cakewalk on some instruments (Letterbomb arguably being the easiest) unless you are great at this game you might have to work a bit for this one particularly for Homecoming.

Please note that completing these songs on a challenge will not add to the achievement.

Thanks to SteSteSte91 we have some cutoffs!

Give Me Novacaine / She's a Rebel
Guitar: ~240,000
Bass: ~196,400
Drums: ~229,000
Vocals: 263,000

Homecoming
Guitar: 395,000
Bass: 294,000
Drums: 367,000
Vocals: 482,000

Letterbomb
Guitar: 238,000
Bass: ~168,800
Drums: ~200,000
Vocals: ~159,000

Are We the Waiting / St. Jimmy
Guitar: 231,000
Bass: 160,500
Drums: 203,475
Vocals: 255,000

Well if like me you're ok at expert guitar but no where near good enough to gold star them I've found a fairly easy way of doing this by singing.

The more mics and singers you have the better, 3 will be best obviously. 1 singer per mic.I did it with me and my girlfriend. We both suck at singing but you don't need to be good, just knowing the tunes helps a lot.

Basically you put the songs on solo play, not harmonies and everyone sings the song. The game will pick up whoever is on pitch at any given time, I personally just hummed the tunes while my girlfriend sang them. I caught bits of lines she missed and she got bits of lines i missed making it easy to 100% and gold star these songs.

If you only have 1 mic then just try the humming through the mic, it's amazing how much better you do by humming, especially on long sustained notes.

The hardest song was Letterbomb as it's the shortest and any mistake will be punished but the 3 longer songs the gold star cut-off is actually considerably lower than the maximum possible score as determined by the leaderboards. For example Homecoming cuts off at 482,000 but the highest possible score (so far) is 546,604 and Are We The Waiting cuts off at 255,000 but the highest possible score is 291,324 so there's still room for mistakes on these ones.

The only other thing i'll say is stick with it. Don't expect to nail them 1st time. Every failed attempt will warm your vocal chords up and familiarise you with the song or tune. Whether you're singing or humming you WILL get better.

Hope this helps someone, any questions feel free to ask.

Though Rock Band titles are known for having pretty strict requirements for Bass to earn Gold Stars, I've found this achievement to be the easiest thus far to attempt on Bass. The approximate GS cutoffs are:

"Give Me Novacaine / She's a Rebel": 196,400
"Homecoming": 294,000
"Letterbomb": 168,800
"Are We the Waiting / St. Jimmy": 160,500

The only one giving me a bit of pause at the moment is "Homecoming", mostly because of the length...so it takes longer to reset once you fail to Gold Star and start up again.

Since you're playing on Bass, you need to play fairly close to perfect (the GS's I have so far have been between 100-98%) and require smart usage of Overdrive.

Thankfully the songs in question feature fairly repetitive patterns that are easy to get the hang of if you are familiar with alt-strumming on guitar. So build up your Overdrive and then unleash it on the long alt-strumming sections. This is especially the case with "Letterbomb" and "Give Me Novacaine/She's a Rebel".

Good luck!

EDIT: I can confirm that Band Gold Stars count towards this achievement (Similiar to how Band ratings count towards the other Star related ones), so if you are having difficulty boosting your score high enough it may be a good idea to find a at least a second expert guitarist or drummer and go for a Gold Star as a band.

I ended up finding three expert bandmates in Quickplay and we Gold Starred "Homecoming" on our first try with about 2.6/2.8 million. Was watching the notes so I didn't see the exact moment the Gold Stars popped up.

If you are having trouble trying to gold star Are we waiting/St. jimmy try doing a vocal harmony with a friend. I tried bass, guitar, drums, and vocals. Vocals i got with my friend 267,000 after two tries.

Edit: MattiasAnderson had problems with Letterbomb and Are We the Waiting/St. Jimmy, so be aware that maybe these videos don't work well if you want to sync it.

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I can get 5 or gold stars every Green Day song on Vocals, so I record myself singing these songs.

You can use it as a guide, try to sync it or use it as the main harmony. I hope this can help you

Give Me Novacaine/She's a Rebel

Homecoming

Letterbomb

Are We the Waiting/St. Jimmy

This is meant to be an addition to the vocal tips above. My friends and I have found that if you can, do the vocals on harmony with friends. If you can both nail at least the 2 part harmonies, you'll pull in extra points with each phrase.

We were originally having issues getting the gold on Homecoming, only pulling around ~475,000. When we switched to doing harmonies, we pulled ~540,000.

It was still close on Letterbomb, so the other options will probably work just as well. It ended up being 100% and getting about 165,000 with 7 out of 8 doubles.