Can you help me pick 16 more songs?!?

this is not diverse Imao

Fat Bottomed Girls always works. Get on your bikes and ride! Maybe also something by The Police.

I'd be pushing it to pick 16, but here's a few:

Here's Where the Story Ends  - The Sundays.

Highway Chile - Jimi Hendrix Experience

 Protection - Massive Attack

Melinda (More Or Less)   - Curved Air

Castles In the Air - Don Mclean.

Sweet Thing - Jeff Buckley.

Changes - Phil Ochs

Queen Somebody To Love

AC/DC It's A Long Way To The Top (If You Wanna Rock And Roll)

ZZ Top Sharp Dressed Man

Bad Company Rock And Roll Fantasy

Def Leppard Animal

Rush The Spirit Of Radio

Led Zeppelin Kashmir

The Doors Light My Fire

John Mellencamp Jack And Diane

They were tired of the songs of their youth. I would suggest something rare or newer. Here is my list:

1. Ismael Lô – Tajabone

2. АRTUR - The Star of Love

3. Dire Straits - Sultans Of Swing

4. Sting - Shape of My Heart

5. Duran Duran - The Wild Boys

6. golden earring - twilight zone

7. Lacrimosa - Alleine Zu Zweit

8. Lara Fabian - Je T'aime

9. Harel Skaat – Milim

10. Dima Bilan – Believe

11. Sergey Lazarev - You Are The Only One

12. Alla Pugacheva - The Story of a Million Roses

13. LITTLE BIG - SEX MACHINE

14. t.A.T.u. - All About Us

15. W - Koi no Vacance

16. The Peanuts - Koi No Fuga

It's an odd psychological fact that for most people the music they hear at the age of 14 sticks with them for the rest of their life.

So, music from around 1985 should go down particularly well with your sister.

eg.

A-Ha - Take On Me

Billy Ocean - Loverboy

Dire Straits - Money For Nothing

Tina Turner - We Don't Need Another Hero (Thunderdome)

Talking Heads - Road To Nowhere

Pet Shop Boys - West End Girls

Mr. Mister - Broken Wings

Midge Ure - If I Was

Huey Lewis And The News - The Power Of Love

Feargal Sharkey - A Good Heart

Eurythmics - Would I Lie To You

Bryan Adams - Run To You

Billy Idol - White Wedding

Debarge - Rhythm Of The Night

Duran Duran - A View To A Kill

Tears For Fears - Shout

Steely Dan. Ricki don't lose that number

Eagles. Hotel California

Frank Sinatra. My way

Elvis.  Can't help falling in love

Happy birthday to her

Good Day Sunshine - Beatles

Here Comes The Sun - Beatles

Rocks Off - Rolling Stones

YYZ - Rush

Love Me Two Times - The Doors

Peace Of Mind - Boston

Wanted Dead or Alive - Bon Jovi

Somebody To Love - Jefferson Airplane

Love Song - The Cure

Rambling Man - Allman Brothers Band

Rush - Big Audio Dynamite

Gotta Give It Up - Marvin Gaye

Theme from Shaft - Isaac Hayes

Cheap Sunglasses - ZZ Top

Twisting By The Pool - Dire Straits

Blister In The Sun - Violent Femmes

Chucky's in Love, Ricky Lee Jones

I Saw the Light (in your eyes)- Todd Rungren

First Time Ever I Saw Your Face - Roberta Flack

I Will Always Love You - Whitney Houston or Dolly Parton

Somewhere Over the Rainbow - Israel "IZ"

Both Sides Now - Joni Mitchell

What if God was One of Us - Joan Osborne

Killing Me Softly - Roberta Flack

I'm Still in Love With You - Al Green

Paradise by the Dashboard Light - Meatloaf

I Just Want To Be Your Everything - Andy Gibb

My Girl - Temptations 

Over the Hills and Far Away - Led Zep

Light My Fire - Doors

Silly Love Songs - Paul McCartney

Just My Imagination - Temptations 

Great playlist you've got going!

you need some Beatles, some Rolling Stones, some MaDonna, and some Motown.