Brutuklumpus' volatile Encyclopedia of the Art of Interpretation, # 3:
Summertime by Gorge Gershwin (1934)
Summertime 1934 - 2021: Covers, Copies, Appreciations and Desecrations
  1.)  Milestones / Heavy Rotation
  2.) Archive, alphabetical order
  3.) Fundus, unsorted
Poor choice...?
More:
On Coverinfo: 1 Original + 806 Cover-Versions listed (some are audios)
https://cover.info/de/song/Abbie-Mitchell-Summertime
On "The Summertime Connection":  71.000 records of Summertime listed.

Brut_3: Summertime (Best of 1934 - 2021)

Modern world jazz fusion version of Summertime.

All parts played and recorded by Hannah Sterry (excluding the drum loop).

Instruments include:
Vocals
Flute
Clarinet (briefly)
Synth Bass

Summertime (Modern Version)

An "acid version" of the famous hit Gershwin's "Summertime" - Trio "AMericana": Andrea Bellini, keyboard; Claudio Castellari,saxophones & clarinet; Marzia Pecce, voice

Trio "Americana": Summertime (acid version)

Una versiòn traducida de la tan conocida "Summertime" (1935), canción compuesta por George Gershwin.

Summertime por Apice

Pretty Lights - Summertime

A version of George Gershwin's Summertime played by a drunken russian :)

Warm Vodka

The second and latest single from the Opportunes' upcoming studio album, set for release in Fall 2015. 

"Summertime," originally by Gershwin/Heyward (from "Porgy and Bess"), is arranged by Pilar Fitzgerald '15 with a solo by Nikki Kapu '14. 

Produced by Plaid Productions, Ed Boyer A Cappella, Dylan Schaffer '16, and Eli Schleicher '17. 
Vocal Percussion by Ben Donald '15.
Mastered by Vocal Mastering. 
Album artwork by Eliza Wiant '18.

Summertime

A hard rock mashup of jazz composer George Gershwin's "Summertime" and the Animals' blues rock rendition of "House of the Rising Sun" that showcases guitar work of the most classic rock and metal styles

Ladies & gents, i'm really happy to present you my tribute to the greatest Ladies of Soul. I bet that you're going to love this remix compilation if you dig funk, soul, swing & reggae music. 
Props to JPOD for his amazing contribution. 
http://jpodtbc.com/
Download the compilation for F.R.E.E
https://speakeasyelectroswing.bandcamp.com/album/soul-sisters-remixed-speakeasy-vol-5-by-don-mescal

<a href='https://theartistunion.com/tracks/e01d79'>Download for free on The Artist Union</a>

FREE DOWNLOAD

Billie Holiday & Louis Armstrong & Ella Fitzgerald - Summertime (JPOD Remix)

For Youtube Video: https://www.youtube.com/watch?v=VOer5zxjxs8

Our version of Gerswhin's Summertime
Live in Akko Jam club
Yoav Sagi - Electronics
Omri Ben Horin - Bass
Hagar Michaeli - Vocals
Barak Sella - Guitar
Guy Cohen - Tenor Sax
Gai Shouval - Alto Sax
Video recording and editing - Gal Catz, Oren Cahalon
Audio recording - Gur Spiegel

Save Don't Save - Summertime Glitch Hop Cover

Keys to the Blues

A hip hop remix of  the well-known song "Summertime" by Gershwin. Enjoy and God bless

Summertime (Remix)

Dani Zsolnai  - Summertime (Billie Holiday cover) [ single demo version]

Original is only two and a half minutes long so I've extended and rearranged the instrumental parts.