I'm a Fan because Christina Aguilera is simply, amazing.
She is close to 30, but thinks like any other teenager.
She is very innovative, & independent.
She has a mind of her own, very original.
Despite all the negative remarks that she copied Ms Lady Gaga,
or all the critisism about her sexual being,
she still continue doing her stuff, cause she knows what's right.
She is not copying or ripping off anybody's style,
that's why she is continueing the style.
& she also stated clearly in her song, "Still Dirty",
that ... "If i wanna be provocative for that ain't a sin, maybe you're uncomfortable in your own skin."
All the things she does, just attracted me.
She really is amazing. So original. So daring. So amazing.
& of course, her looks.
Her face features are really gorgeous.
Her eyes are so mesmerising.
Her lips are oh-so-sexy.
She looks amazing. Plus, she's a mom!
She look better then ever.
*smiles*
And last but not least,
HER AMAZING VOCALS.
It has this power, that you will not hear in other singers.
I only heard the same power from Whitney Houston.
You will not hear this sacred power & roundness voice in
Mariah, Beyonce, Kelly Clarkson, or even Jennifer Hudson!
Mariah may hit the most graceful highest notes,
but her voice is not as powerful.
Beyonce & Kelly might be counted to have a powerhouse
vocals too, but do they even stand a chance with Christina?
Jennifer ... she's awesome. But not as good. *smiles*
All the stars I've stated from the start of the paragraph
till here is awesome, but i think Christina is the best. 
Her voice goes very low, extremely high.
Her voice can give you goosebumbs in her high & low notes.
Her voice can produce the powerhouse vocal chords that
can blow your wig off.
Her voice can also make you sleep soundly with her soft,
falsetto.
Christina is beyond amazing & talented.
That is why I think its worth to listen to whatever
she produces, regardless if its lousy or productive.
That is why I am a Fan.