Summarize:

Tap the YouTube app icon, which resembles a red box with a white triangle on it. Tap the "Search" {"smallUrl":"https:\/\/www.wikihow.com\/images\/e\/ea\/Macspotlight.png","bigUrl":"\/images\/thumb\/e\/ea\/Macspotlight.png\/30px-Macspotlight.png","smallWidth":460,"smallHeight":460,"bigWidth":"30","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of a Mac icon.\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"} icon in the top-right corner of the screen, then enter the name of a video you want to download. Scroll through the video results until you find the video for which you want to download an MP3, then tap the video. It's below the video's play window. Doing so prompts a pop-up window. This option is in the pop-up window. Your YouTube video's link will be copied to your Android's clipboard. Close YouTube, then tap the Chrome app icon, which resembles a red, yellow, green, and blue sphere. Tap the address bar at the top of Chrome to highlight its contents, then type in youtubemp3.to and tap the "Enter" or "Search" key. Tap the text box in the middle of the page to bring up your Android's on-screen keyboard, then tap the text box again and tap PASTE when it appears as an option. Your YouTube video's URL should appear in the text box. It's a red button near the middle of the screen. Your video will begin converting. If your browser is redirected to an add, tap the X in the current tab, then open a new tab, go back to YouTubeMP3.to, and re-enter the address. This green button will appear when your video has successfully been downloaded. Open your Android's default file manager or Files app (or download the ES File Explorer app), then do the following:  Select your Android's file storage location (e.g., SD card). Find and tap the Download or Downloads folder. Find and tap the MP3 file to play it.
Open YouTube. Search for a video. Select a video. Tap Share. Tap Copy link. Open  Google Chrome. Open the YouTubeMP3 site. Enter your YouTube video's address. Tap CONVERT. Tap DOWNLOAD when prompted. Play your MP3 file.