Mel B says she hopes things will improve for the next Spice Girls' gig.
Their long awaited comeback at Croke Park last night was hit by sound problems.
Afterwards, "Scary" put a message on Instagram from her bed.
Scary Spice said she hoped the "vocals and the sound will be much much better" for their next show.
Scary said: "Thank you for attending our show tonight in Dublin...we will see you in Cardiff.
"Hopefully the vocals and the sound will be much much better".