Mel B feels ''old'' because she has a teenage daughter.
The 36-year-old singer can't believe Phoenix - her child with first husband Jimmy Gulzar - is now 13, though she still considers her eldest girl to be her ''baby''.
Mel - who also has four-year-old Angel with Eddie Murphy and six-month-old Madison with current spouse Stephen Belafonte - said: ''Phoenix has just turned 13, I can't believe I've a teenager on my hands, I feel old.
''She's a little bit moody because she's a teenager but we're very close. She's my first so I still consider her my baby, she's a sweetheart.''
Mel is so close to Phoenix, she even let her name her youngest sister, and insists she wasn't worried her daughter would come up with a wacky moniker for the tot.
Speaking on UK TV show 'Lorraine', she said: ''Phoenix was there at the hospital with me and I said, 'Why don't you name your sister?'
''I mean, everything about Phoenix is very funky and very stylish so I knew she'd pick a nice name.''
Mel can next be seen hosting 'Dancing With The Stars' in Australia - a contest she came second in the US in 2007 - and though she is nervous about her first presenting job, she is relieved not to be taking part in the celebrity dancing competition this time around.
She said: ''I'm glad I'm hosting because those rehearsals are a killer. Your feet hurt because of the shoes ... it's hard work.
''I'm going to be nervous hosting but I like a challenge.''