silent night is good at this time but if you never have played piano before sorry i have been playing for two years and this is my favorite.
Some good songs with piano in them are;Clocks by ColdplayA Thousand Miles by Vanessa Carltonall of the songs by The FrayThat was a great answer but I would like to add something:Billy Joel makes great songs that all have piano in them like, The Entertainer, It's Still Rock and Roll to me, New York State of mind, Piano Man, Uptown Girl and many others!
Duke Ellington uses the piano to set the mood or rhythm of some of his songs.
mission impossible
Gustav Holst 4 Songs, for soprano (or tenor) and violin, Op.35, H.132 and Bach arias for soprano and violin
It is mary had a little lamb
New York Alicia Keyes
1000 miles
Serious songs like imagine by john Lennon have piano..... also there are some really funny songs by people like tom lehrer and Tim minchin with big piano solos
silent night is good at this time but if you never have played piano before sorry i have been playing for two years and this is my favorite.
the river flows in you by yurmia.
Sonata, Etude in E Minor, etc.
ode to joy ...
There are lots of good songs that are appropriate for a 7th grade party. You can check your local radio stations for stations that are geared towards that age. For example, Radio Disney would be a good example of what to play for 7th graders.
Some sheet music will have the grade listed,but not all,mostly sheet music for the piano.
I Dreamed a Dream popularized by Susan Boyle, and Part of Your World from the Little Mermaid are some good songs for the upper voice.
Mary had a little lamb