Hello, World! is the first mini album by Xdinary Heroes. It was released on July 20, 2022. Hello, World! consists of five tracks written and composed by the band. The lead single "Test Me" is synth pop-rock song with lyrics about "defiance and having the courage to say “no" to a conformist society.

Tracklist:

1. Test Me
2. Knock Down
3. Sucker Punch!
4. Strawberry Cake
5. Pirates
6. Test Me (Inst.)

Inclusions:

• Photobook : 210 x 270mm / 155 x 210mm / 88p
• CD
• Photocard : Random 1 out of 12
• Folding Photocard : Random 1 out of 6
• Popup Card
• Hologram Sticker
• Poster : Random 1 out of 7 / 1st Press Only