I’ve choses 5 songs each for both men and women on which it is easy to get high scores. Also, please refer to the advice and suggestions on how to sing to get a high score. For one of the five songs, I’ve chosen a recent song.
■ For men
"Lemon" Kenshi Yonezu
This song was also the theme song for a TBS drama. Released in 2018, it's already a classic for those who like karaoke. The melody is not too high, making it easy to sing and you can aim for a higher score.
Kenshi Yonezu's songs are all familiar melodies, so many of them are easy to remember and sing. The last section is a little high, so be careful not to go ♭ (flat) when singing. If you’re having a hard time, try using your falsetto for this section.
"Voice of the Sea" Kenta Kiritani
This was a big commercial song hit as you know. It's a laid back tune particular to Okinawa, so even those who are not good with rhythm can easily sing it.
In karaoke, all vibrato is subject to additional points, so add it even where Kiritani doesn’t use it.
It is a great song, and even men with a low voice can easily sing it and get a high score.

"Koshien" Masaharu Fukuyama
This song was the first theme song for the NHK High School Baseball Championship in 2018.
For men who think "I can't sing that high", all of Masaharu Fukuyama's songs are easy to sing and you can aim for a high score.
As long as there is high school baseball, this masterpiece will be sung for years to come, so it is a good song to practice until you can sing it well.
"U.S.A." DA PUMP
DA PUMP's new single is a big hit!
Although it’s Eurobeat, the melody is in C minor, so it’s easy to sing and you can aim for a high score. It's the perfect song to dance to and make noise with everyone! Let's get this one down in time for the school festival!
"America Bridge" Yutaka Yamakawa
I’m introducing songs that people of all ages can enjoy.
This is another masterpiece, but it is also in a key that is very easy for men to sing. The highs continue in the chorus, and hitting the melody spot on leaves a good impression.
If you want to get a high score, this is the one!
Please see the proof from the image of one of my students singing! (Lol)

■ For women
"Tokyo" JUJU
Recently released song from 2018.
The chorus is a little difficult, but if you can survive it, the overall melody is slow and the song is easy to sing, so you can aim for a high score.
Use vibrato and fall a lot to get additional points.
Also, the official video on YouTube enhances the goodness of the song and will surely make every generation cry. Please check it out at least once.
"Natsukage" Lia
She sings in a straightforward manner, with a wonderfully clear voice and a pitch-oriented singing style not unlike a nursery rhyme.
If you are aiming for a high score, add vibrato, intonation and so on, and if you sing with more emphasis on pitch, 100 points is not just a dream.
If you want to get a high score, this is the one!
Please see the proof from the image of one of my students singing! (Lol)

"Thread" Miyuki Nakajima
A masterpiece that has been covered by many vocalists.
This is a song that you can't leave out if you’re aiming for a high score.
It's a laid back melody, so it's easy to pick up the rhythm, and the range is one octave, so it's easy to sing.
Every generation knows it, and if you like karaoke, there’s no loss in practicing it.
"Koi Suru Fortune Cookie" AKB48
Idol songs are created so that everyone can sing happily and well.
When you’re in trouble, pick an Idol song! Please don’t forget this.
The melody is one that everyone likes, and it’s a song that even musicians praise.
The melody itself has a small range of highs and lows, and I don't think it's difficult to hit the highs.
Points will be added if you focus on intonation.
Everyone can sing and dance happily, and you can secretly aim for 100 points, so it’s a good song to practice.
"Hanamizuki" Yo Hitoto
This is also a masterpiece on which it’s easy to get a high score.
The range is a little over an octave, and the song is laid back, so it's easy to pick up the rhythm.
If you add more vibrato and sing with more intonation than usual, you can get a high score relatively easily.
■ Summary
The secret to getting a high score is
1. Easy-to-sing songs (for you)
2. Laid back rhythms
These two points.
To explain it in an easy-to-understand manner, nursery rhymes are the easiest to score high on. If you sing with intonation or apply vibrato firmly, you will get the points.
KEY change has nothing to do with the score, so adjust it to a KEY that you’re comfortable singing in. When men with a low voice sing a female vocalist’s songs without adjusting the key of the original song, a high score is given.

There are many ways to enjoy karaoke. It's the only entertainment that everyone can enjoy while dancing and making noise, and it's also great to enjoy playing against karaoke lovers nationwide, aiming for a high score.