Sebastian Vettel powers his car out of pit lane

 Sebastian Vettel powers his car out of pit lane during the first practice session of Formula One's Singapore Grand Prix The race to the Formula One drivers' title is on a knife-edge going into Sunday's Singapore Grand Prix, and picking up points will be crucial for the five men in serious contention.

Jessica Michibata, the girlfriend of McLaren Formula One driver Jenson Button arrives at the paddock

Jessica Michibata, the girlfriend of McLaren Formula One driver
Jenson Button  arrives at the paddock before the Singapore F1 Grand Prix 

Lewis Hamilton and his girlfriend Nicole Scherzinger arrive ahead of the Singapore F1 Grand Prix

Lewis Hamilton and his girlfriend Pussycat Dolls
 singer Nicole Scherzinger arrive ahead of the Singapore F1 Grand Prix

Jenson Button walks with his girlfriend Jessica Michibata

Jenson Button  walks with his girlfriend Jessica Michibata as they arrive at the Marina Bay City Circuit 

An aerial view shows the illuminated Marina Bay street circuit of the Singapore Formula One Grand Prix

An aerial view shows the illuminated Marina Bay street circuit of the Singapore Formula One Grand Prix at dusk in Singapore 

Jose Davila and other competitors cross the start line

Jose Davila and other competitors cross the start line during the Boys Techno 293 Windsurfer

Fireworks explode over Mariana Bay during the Singapore 2010 Youth Olympics closing ceremony

Fireworks explode over Mariana Bay during the Singapore 2010 Youth Olympics closing ceremony

Ivan Garcia dives as a Republic of Singapore Air Force (RSAF) C-130 Hercules transport aircraft flies past during the men's 10-meters platform diving preliminary

 Ivan Garcia dives as a Republic of Singapore Air Force (RSAF) C-130 Hercules transport aircraft flies past during the men's 10-meters platform diving preliminary at the Singapore 2010 Youth Olympic Games

A ring around the sun above Singapore

A ring is seen around the sun above Singapore

Brazilian boxer David Lourenco celebrates after winning his welterweight 69 kg boxing final bout against Ahmad Mamadjanov

Brazilian boxer David Lourenco  celebrates after winning his welterweight 69 kg boxing final bout against Ahmad Mamadjanov of Uzbekistan at the Singapore 2010 Youth Olympic Games (YOG)

The closing ceremony of the Singapore 2010 Youth Olympic Games

The closing ceremony of the Singapore 2010 Youth Olympic Games (YOG) at the Marina Bay Floating Platform

Princess Stephanie of Monaco hugs her daughter Pauline Ducruet after she qualified for the women's three-metres springboard diving final

Princess Stephanie of Monaco hugs her daughter Pauline Ducruet after she qualified for the women's three-metres springboard diving final at the Singapore 2010 Youth Olympic Games

Oleksandr Bondar competes in the preliminary of the Youth Mens 3m Springboard diving competition

Oleksandr Bondar competes in the preliminary of the Youth Mens 3m
Springboard diving competition

Ioran Etchechury trips and falls into the water during the boys' 2,000-meter steeplechase

Ioran Etchechury  trips and falls into the water during the boys' 2,000-meter steeplechase   

Sam Oldham falls from the high bar at the Singapore 2010 Youth Olympic Games

Sam Oldham falls from the high bar at the Singapore 2010 Youth Olympic Games 

Photos of the opening ceremony celebrations of the inaugural Youth Olympic Games

Singapore's torch bearer and sailor Darren Choy runs toward the Youth Olympics Cauldron

Singapore's torch bearer and sailor Darren Choy runs toward the Youth Olympics Cauldron during the opening ceremony to mark the start of the inaugural Youth Olympic Games held in Singapore 

Katy Perry in the pool of the Marina Bay Sands SkyPark

 Katy Perry holds a media conference in the pool of the Marina Bay Sands SkyPark
 for the open-air music festival Singfest 2010

The infinity pool of the Skypark

 Singapore  The infinity pool of the Skypark                                                                                                                                  Reuters

The ovarian follicles of a Livingstone Turaco species of bird

The ovarian follicles of a Livingstone Turaco species of bird undergoing a sexing procedure is seen through a scope which will later be fertilized to become yolk at the Jurong Bird Park in Singapore