Avex really likes to recycle song titles and PV concepts. "Kiseki" and "flower" are very common song titles. Here are some other examples:
- Hikaru Utada and Hitomi Shimatani share a song title, ASAP.
- Koda Kumi and Namie Amuro both have songs called "butterfly"
- Ayu and Ami Suzuki have songs called "About You".
- Ayu has a song called "ANGEL'S SONG" when The Brilliant Green has a song called almost like that as well.
- Nami Tamaki has songs called "Daybreak" and "You", just like Ayu
- There's also young singer Nami Uehara who just released a single called "Real me", like Ayu
- Namie Amuro has a song called "Please Smile Again", similar to ELT's "Smile Again"
These are just a few of a huge number of examples
