Conversation so far:
How did Sugizo's solo career begin?
After Luna Sea went on break in 1997, Sugizo started his own solo career and opened the independent label Cross to produce other artists and release his own records.
What did Sugizo first accomplish on his solo career?
On July 9 1997, Sugizo's debut single Lucifer was released and reached number 8 on the Oricon singles chart.
What did Sugizo do on July 9th?
On July 9 1997, Sugizo's debut single Lucifer was released and reached number 8 on the Oricon singles chart.
What other hit singles did Sugizo release besides Lucifer?
On September 10, 1997, Sugizo released his second single, A Prayer.
Did the single A Prayer by Sugizo rank well on the charts?
On September 10, 1997, Sugizo released his second single, A Prayer, which reached number 7 on the charts.
Did Sugizo release any major albums during his solo career?
On November 19, Sugizo's first solo album Truth? was released, and reached number 12 on the album charts.
What songs did the album Truth? by Sugizo consist of?
Are there any other interesting aspects about the Sugizo article besides his first album?
Sugizo started his solo career in 1997 and has since collaborated with a variety of different artists.

Question: What sort of collaborations did Sugizo do with others?
Self-contained rewrite: What sort of collaborations did Sugizo do with others?