how did it perform at the charts?
It debuted on the ARIA Singles Chart at number 38.
Eh, Eh (Nothing Else I Can Say)
debuted on the ARIA Singles Chart at number 38 
what is 'eh, eh (nothing else i can say)'? It is a song. who is the singer? Lady Gaga
wiki:8684359
Eh, Eh (Nothing Else I Can Say) [SEP] Chart performance
"Eh, Eh (Nothing Else I Can Say)" debuted on the ARIA Singles Chart at number 38 on the issue of January 18, 2009. The following week it climbed to number 32 and ultimately peaked at number 15, on the issue of March 1, 2009, making it Gaga's third single to hit the top twenty there. After thirteen weeks on the chart, "Eh, Eh" was certified gold for shipment of 35,000 copies by the Australian Recording Industry Association (ARIA). In New Zealand, "Eh, Eh" debuted at number 40 on the issue dated January 19, 2009. The following weeks it continued its rise on the chart and ultimately peaked at number nine, spending three weeks there, and becoming her third consecutive top ten hit in New Zealand.