Olivia Newton John too. She had similar career with Taylor Swift. Would be interesting.

Please do Gwen Stefani and No doubt.

An update on Janet Jackson would also be nice

CSPC for the Status Quo would be fine.

ELO would be really interesting if you could do analysis for them please

Thalia from Mexico! She was big in the late 90's

Steely Dan and Depeche Mode.

Fifth Harmony Update Please. I am really curious

Hi guys,

I wondered if and when you will be doing journey also a queen update would be really interesting following there recent spike in popularity and finally will you be doing cliff Richard i know it will be a lengthy one but would be really interesting.
Great work guys.
Thanks.

Thalía, The Queen Of Pop Latino

Spandau Ballet

Actually was thinking the exact same thing tonight, she did pop/country then 6 years later 1975-1981 she did pop/dance music (a la Taylor 2008-2014 from fearless-1989) I’m really curious to see how well the Physical era did hopefully MJ does her soon oh and updates Miley Cyrus it’s been 2 years since hers

Twice, a korean girlgroup, one of the best selling groups in Asia

Cheryl or Girls Aloud. UK artists but would be interesting to compare

Jessie j please love your work but I don't understand how physical single sales add up to album sales I totally understand streaming and YouTube

Please do Tool!!

I appreciate the hard work y'all put into this. Here are my numerous requests when you can: Diana Ross, Missy Elliott, Donna Summer, Marvin Gaye, Stevie Wonder, Frank Sinatra, Tina Turner, Chaka Khan, LL Cool J, Aretha Franklin, Olivia Newton-John, Toni Braxton, Brandy, Busta Rhymes, Lil' Kim, Jay-Z, Nas, Boyz II Men, 2Pac, The Notorious B.I.G., Monica, Grace Jones, The Pointer Sisters, Sade, Stevie Nicks, OutKast, Cyndi Lauper, Gloria Estefan, Rod Stewart, Eric Clapton, Paula Abdul, En Vogue, Salt-N-Pepa, Dean Martin, Tom Petty, Willie Nelson, Dolly Parton, Reba McEntire, Gwen Stefani, Snoop Dogg, Dionne Warwick, Daddy Yankee, Ne-Yo, Diddy, Barry Manilow, Daryl Hall & John Oates, Lionel Richie, Linda Ronstadt, Natalie Cole, Connie Francis, Bob Seger, Patti LaBelle, Gladys Knight & The Pips, New Edition, The Temptations, Barry White, The Everly Brothers, Lenny Kravitz, Sean Paul, Chuck Berry, Helen Reddy, Carly Simon, and Teena Marie.

Please add Iron Maiden

Faith No More

Gwen Stefani and no doubt please.
I assume tragic kingdom is at 20m cspc or higher.
LAMB must be over 10m cspc as well.

there's a couple alright artists in there..........I'd like to see Inxs, John Mellencamp, Chicago, Van Halen, Ringo, George Harrison, Take that, Robbie Williams, Motley Crue, George Strait, Miles Davis, Luciano Pavorati, Glenn Miller, Bing Crosby, Cliff Richard, Iron Maiden, Roy Orbison, Jerry Lee Lewis, Yes, Don Henley, Billie Holliday, Jimi Hendrix, Janis Joplin, Four Seasons, Crosby Stills Nash/Young, Neil Young, Cream, Little Richard, Louis Miguel, Julio Eglasious, Pearl Jam, Stone Temple Pilots, Genesis, New Kids on the Block, M.C. Hammer, Vanilla Ice, Neil Diamond, Scorpions, The supremes, Peter Frampton, Santana, Robert Plant, Jimmy Page, Jeff Beck, Lynrd Skynrd, Alabama, Gary Glitter, Tom Waits, Annie Lennox, Sting, The Police, The WHo, Fats Domino, Peter Gabriel, Jewel, Prince Royce, James Taylor, No Doubt, Rush, Sex Pistols, Patsy Cline, Heart

Thanks MJD For Your Ayumi Research!!!

Whos gonna be your next research.Gwen Stefani & No Doubt,Gwen will turn to fifty years old next months!
Ke$ha is going to come back with her new ear right now
Or Nelly Furtado,who also did well with 2 album cspc OVER 5

Johnny Cash

Blink-182 would be fun now that they have a new album out. And Blondie and The Strokes.

But above all I think it's time for more of the Classic rock bands like:

Black Sabbath
KISS
Iron Maiden
Motley Crue

Please could someone give me the Spotify ID for the band HEART?