Visible crew/equipment: When Terri sits down to talk with her aunt after Paul's graduation, you can see between her shirt and his pants on her right side there is a 1/8" wire used for the wireless mic.
Visible crew/equipment: When Terri and Paul are pushing the car out of the driveway, you can see somebody else pushing the car with them.
Visible crew/equipment: In the shot where Terri has just entered the arts school, when she turns to where there is a door with several panes of glass the shot changes and you can see a person in the reflection watching her, but when she turns back around, he's nowhere to be seen.
Visible crew/equipment: When Paul's family are throwing a graduation party in the backyard of their house, you can see a crewmember reflected on the BBQ.
Visible crew/equipment: When Jay is playing his guitar at the lunch jam, a crew member is reflected in his guitar.
Answer: All of the singing that Hilary Duff did in the film is her own. This is stated in the credits of the songs she did.
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