PhotoGrid - Picsart removed a lot of grid options from its collage feature, and limited the amount of pictures to 10. While this app is inferior to Picsarts quality, it lets you choose max 15 pictures and has numerous layouts.
Karaoke 5 - karaoke 5 software - Excellent Player and Creator of file Karaoke. Karaoke. Professional karaoke program. Free karaoke program.
Acapella Maker - Acapella Maker is an intelligent application that allows you to make the desired video collage in an automated and easy way.
UltraStar Deluxe - A free and open source karaoke game inspired by the Singstar™ game, runs on Windows, Linux and macOS.
iSing Karaoke - iSing Karaoke is free to use the Karaoke app that offers free access to hundreds of songs.
KaraFun - KaraFun is the best online karaoke. Over 35,000 karaoke songs, with studio quality, at home or on the go. Regular updates. Free demo!