Possible Clues:

• Want - require(ment)
• You have to want to be in this
• It may be urgent
• This may have led to one's being annoyed
• Originally called old Penny for what's required
• Alicia Keys: "I ___ You"
• Absolutely have to have
• If ___ be
• Require (as essential)
• Lady Antebellum: "___ You Now"