Rihanna - Unfaithful -> Elisa - Music In The Night(most in the b-melo)
In this case Rihanna is ripping off Elisa, since Unfaithful is a newer song, so maybe her producers listen to Eurobeat
How do you know when Music In The Night was produced? Could it have been last year(that's when LED was last producing)? Unfaithful is from 2005-2006.
Not Eurobeat(but hard melodic trance/cyber trance): Sanxion7 - EternuS(won the DDR Supernova 2 music contest) sounds a lot like the music from the Lava Zone in Wanderers from Ys(SNES, TGCD, and Genesis), especially in the interlude where it uses a 16-bit style sawsynth lead.
Back to Eurobeat similarities:
Domino - Gotcha(also uses King and Queen format, which may have itself been based on BB$) and Judy Crystal - Tokyo All Ready(actually this was made first)
Judy Crystal - Nori Nori Nori and Starkly Ice - One For You
Go Go Girls - Baby Can You Love Me and Leslie Hammond - Run and Run(which also rehashed elements from Bazooka Girl - Money Funny Dollars)
Mote Mote - Korea Japan and Jungle Bill - Tarzan Japan(of course their both from HRG, which is most famous for recycling their own old tunes)
Yaz(oo) - Don't Go(synth) and Fulvia Coupe - Fire Desire; the Don't Go riff has been rehashed in many non-Eurobeat songs too, for example Double You - Run to Me
Baby Gold - Be My Valentine(primarily b-melo) and Niko - Pilot Is A Hero(I wonder where he heard it before it was officially released)
Mike Mareen - Love Spy and U1 Jewel Style - Midnight Blaze (another DDR "hyper technobeat" song)
Black Eva - Carillon(riff), John Desire - Chemical Love, and a trance/eurodance song I can't remember the name of
John Desire - Chemical Love(sabi) and The Snake - Queen Of Mean(a "song built by committee")
Dream World - Movin' Up(classic Eurodance), Christine - Crazy Generation(and Candy Baby), and Eurobeat Girl Power - Ballerino
Lucyfer - Sky High, Valentina - I Wanna Live(also, the cheesy brass synth sounds like Mario Kart on the SNES), and Ace - In The Fire of Victory
Freddy Rodgers - Dance To the Music and ZaZa - Dance To The Music; an homage in name and style, complete with childish vocals
Now I see where Queen of Mean's riff stemmed from: Edo Boys - No One Sleeps In Tokyo!
F-Zero(original)-Victory lap BGM -> Mega NRG Man - Let It Go
Intro of Maximum Power - Go Rocky Joe->Intro of Jimmy Diamond - Love Machine (were they sampled from a common source?)
I know I heard a Eurobeat song that sounded just like Cynthia - Save Your Love For Me(freestyle), but can't remember the name, sound familiar?
Boney M - Happy Song
Coo Coo - Upside Down
Laserdance - Escape From The Forbidden City(the flute hook from the previous two, in this song played with a different instrument)
BTW, Laserdance, Koto, etc are part of another ItaloDisco/NRG offshoot known as "space synth" or in its earlier days "italo instrumental".
Aleph - Fire On The Moon
Laserdance - Cosmo Tron
Aleph - Hero also sounds like a space-synth tune, albeit with vocals.
Elements of that genre also appear in some true Eurobeat songs(for example Mike Skanner - Atomic Playboy, Extasy - Kiss Me)
Chris Stanton - A Perfect Hero(Time/Eurogrooves, of course) blatantly uses the "Super Euro Flash" bassline and many other elements/hooks common to that and other HRG songs. Also sounds like Mark Astley - I Need A Hero in parts.
Good Cool feat. Meg - Last Message(Konami Bemani original)
Irene - Love Is The Name Of Love
Tora - Flame and Fire
there's probably some older song these are based off of
1943: The Battle Of Midway - first stage music
Mark Foster - SpiderMan(the chorus; Spider, Spider Man!)