Heard this song, can't be that old, main bit goes like

In my heeeaad now, in my head

Queens of the stone age

Or

No doubt

Both titled in my head...

What year do you think it is?

heard this song, can't be that old, main bit goes like

in my heeeaad now, in my head

Only max 1year old female singer sounds a bit like anastacia

Sounds to me like

The Cranberries singing Zombie

sounds to me like

The Cranberries singing Zombie

You are so right, I have searched on you tube for ages, would never have found it but for

Your help, thank you so much, did not realise it was that old, how did I miss it first time lol.

Once again thanks for your help, it was sending me crazy.

I was going to say cranberries as well, but the lyrics are different...
What's in YOUR head, in YOUUUUR head,
And yes, it is a lot older, like 13 years!

I'm glad I could help. Yes, I love that song, and the lyrics are a bit different than what you were describing, but it just hit me... lol.
Oh, and I only heard this song like 5-6 years ago... and at that time, it had already been out for quite some time... so I wasn't sure how old it was either... lol