"Diamond Crevasse / Iteza☆Gogo Kuji Don't be late (ダイアモンド クレバス / 射手座☆午後九時Don't be late)"[1] is Nakabayashi May's fourth official single, released under stage name Sheryl Nome starring May'n. "Diamond Crevasse" was used as the second ending theme and "Iteza☆Gogo Kuji Don't be late" was used as an insert song for popular mecha anime Macross Frontier. 
 Single track listing
 CD (VTCL-35025)| Title | Lyrics | Music | 
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| 1. | "Diamond Crevasse (ダイアモンド クレバス)" (Macross Frontier 1st ending theme) | hal | Yoko Kanno | 5:57 | 
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| 2. | "Iteza☆Gogo Kuji Don't be late (射手座☆午後九時Don't be late, Sagittarius☆9PM Don't be late)" (Macross Frontier insert song) | Dai Satō, hal, Maiku Sugiyama, Gabriela Robin. | Yoko Kanno | 5:46 | 
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| 3. | "Diamond Crevasse (without Sheryl)" (Instrumental) |   | Yoko Kanno | 5:57 | 
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| 4. | "Iteza☆Gogo Kuji Don't be late (without Sheryl)" (Instrumental) |   | Yoko Kanno | 5:44 | 
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| Total length: | 23:23 | 
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  Charts
    | Chart  |  Peak position  |  Sales  |  Time in chart  | 
  | Oricon Weekly Singles  |  #3[2]  |  108,504  |  27 weeks  | 
 References
   | Authority control databases  |  | 
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