Lady Gaga's 300k piano plan

Musician Lady Gaga arrives at the 52nd Annual Grammy Awards held at Staples Center on January 31, 2010 in Los Angeles, California.[Agencies]

Lady Gaga is to splash out £300,000 on the piano she played with Sir Elton John at the Grammy Awards.

The singer is desperate to buy the instrument - designed by controversial Canadian artist Terence Koh - after she and the legendary star opened the US awards ceremony on Sunday (31.01.10), with a medley of her songs 'Poker Face', 'Speechless' and Elton's 'Your Song'.

Earlier this week, Gaga described her duet with Elton as a dream come true, and that she couldn't control her emotions before the show.

The 23-year-old pop star said: "I ruined all of my make-up right before the show. Crying... I was just so happy.

"I had been fantasising about this performance piece for a while and we got to do it and I'm just really truly floored."

It seems likely Gaga may be able to get the money together, as her bankability is at an all time high.

She was reportedly paid £30,000 for a two-hour DJ set at an exclusive London club Maya on January 20.

The 'Just Dance' hitmaker also managed to raise donations of $500,000 for victims of the Haiti earthquakes on January 27 with an impromptu show in New York.