"The young singer is singing to the Hungarians; to the women, men and children."

Translation: A fiatal énekesnő a magyarokhoz énekel; a nőkhöz, férfiakhoz és gyerekekhez.

[_paranoia_]

Would this sentence be correct with dative? I.e., "A fiatal énekesnő a magyaroknak énekel ...."?

[vvsey]

Yes!

[chokie8]

Native hungarian speaker here.
There is 4 good solution for this lesson.
1. A fiatal énekesnő énekel a magyaroknak; - perfect
2. A fiatal énekesnő énekel a magyarokhoz; - perfect too
3. A fiatal énekesnő a magyaroknak énekel; - it's also good
4. A fiatal énekesnő a magyarokhoz énekel; - very good too
What is the difference? The tone. (Not many, and it doesn't really matter).
Let me explain this. Listen to the word order only:
1.-2. sentences: subjective (fiatal énekesnő) + verb (énekel) + target (a magyarokhoz/magyaroknak) - the tone is on the verb, so the fact that she's singing is more important than she's doing this to the Hungarians.
3.-4. sentences: subjective (fiatal énekesnő) + target (a magyarokhoz/magyaroknak) + verb (énekel) - the tone is on the target, so "to the Hungarians" is more important than she's singing.
Hope it's clear now.